diff --git a/appview/issues/issues.go b/appview/issues/issues.go
--- a/appview/issues/issues.go
+++ b/appview/issues/issues.go
@@ -551,7 +551,7 @@ rp.pages.Notice(w, "issue-comment", "Failed to create comment, try again later.")
 		return
 	}
 
-	rp.notifier.NewIssueComment(r.Context(), &comment, mentions)
+	rp.notifier.NewComment(r.Context(), &comment, mentions)
 
 	ownerSlashRepo := reporesolver.GetBaseRepoPath(r, f)
 	rp.pages.HxLocation(w, fmt.Sprintf("/%s/issues/%d#comment-%d", ownerSlashRepo, issue.IssueId, comment.Id))
diff --git a/appview/notify/db/db.go b/appview/notify/db/db.go
--- a/appview/notify/db/db.go
+++ b/appview/notify/db/db.go
@@ -5,6 +5,7 @@ "context"
 	"slices"
 
 	"github.com/bluesky-social/indigo/atproto/syntax"
+	"tangled.org/core/api/tangled"
 	"tangled.org/core/appview/db"
 	"tangled.org/core/appview/models"
 	"tangled.org/core/appview/notify"
@@ -81,48 +82,130 @@ func (n *databaseNotifier) DeleteStar(ctx context.Context, star *models.Star) {
 	// no-op
 }
 
-func (n *databaseNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {
+func (n *databaseNotifier) NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
 	l := log.FromContext(ctx)
 
-	collaborators, err := db.GetCollaborators(n.db, orm.FilterEq("repo_did", string(issue.RepoDid)))
-	if err != nil {
-		l.Error("failed to fetch collaborators", "err", err)
-		return
-	}
+	var (
+		// built the recipients list:
+		// - the owner of the repo
+		// - | if the comment is a reply -> everybody on that thread
+		//   | if the comment is a top level -> just the issue owner
+		// - remove mentioned users from the recipients list
+		recipients = sets.New[syntax.DID]()
+		entityType string
+		entityId   string
+		repoId     *int64
+		issueId    *int64
+		pullId     *int64
+	)
 
-	// build the recipients list
-	// - owner of the repo
-	// - collaborators in the repo
-	// - remove users already mentioned
-	recipients := sets.Singleton(syntax.DID(issue.Repo.Did))
-	for _, c := range collaborators {
-		recipients.Insert(c.SubjectDid)
-	}
-	for _, m := range mentions {
-		recipients.Remove(m)
-	}
+	subjectAt := syntax.ATURI(comment.Subject.Uri)
 
-	actorDid := syntax.DID(issue.Did)
-	entityType := "issue"
-	entityId := issue.AtUri().String()
-	repoId := &issue.Repo.Id
-	issueId := &issue.Id
-	var pullId *int64
+	switch subjectAt.Collection() {
+	case tangled.RepoIssueNSID:
+		issues, err := db.GetIssues(
+			n.db,
+			orm.FilterEq("at_uri", subjectAt),
+		)
+		if err != nil {
+			l.Error("failed to get issues", "err", err)
+			return
+		}
+		if len(issues) == 0 {
+			l.Error("no issue found", "subject", comment.Subject)
+			return
+		}
+		issue := issues[0]
 
-	n.notifyEvent(
-		ctx,
-		actorDid,
-		recipients,
-		models.NotificationTypeIssueCreated,
-		entityType,
-		entityId,
-		repoId,
-		issueId,
-		pullId,
-	)
+		recipients.Insert(syntax.DID(issue.Repo.Did))
+		if comment.IsReply() {
+			// if this comment is a reply, then notify everybody in that thread
+			parent := *comment.ReplyTo
+
+			// find the parent thread, and add all DIDs from here to the recipient list
+			for _, t := range issue.CommentList() {
+				if t.Self.AtUri() == syntax.ATURI(parent.Uri) {
+					for _, p := range t.Participants() {
+						recipients.Insert(p)
+					}
+				}
+			}
+		} else {
+			// not a reply, notify just the issue author
+			recipients.Insert(syntax.DID(issue.Did))
+		}
+
+		entityType = "issue"
+		entityId = issue.AtUri().String()
+		repoId = &issue.Repo.Id
+		issueId = &issue.Id
+
+		for _, m := range mentions {
+			recipients.Remove(m)
+		}
+
+		n.notifyEvent(
+			ctx,
+			comment.Did,
+			recipients,
+			models.NotificationTypeIssueCommented,
+			entityType,
+			entityId,
+			repoId,
+			issueId,
+			pullId,
+		)
+
+	case tangled.RepoPullNSID:
+		pull, err := db.GetPull(
+			n.db,
+			orm.FilterEq("owner_did", subjectAt.Authority()),
+			orm.FilterEq("rkey", subjectAt.RecordKey()),
+		)
+		if err != nil {
+			l.Error("NewComment: failed to get pull", "err", err)
+			return
+		}
+
+		pull.Repo, err = db.GetRepo(n.db, orm.FilterEq("repo_did", pull.RepoDid))
+		if err != nil {
+			l.Error("NewComment: failed to get repo", "err", err)
+			return
+		}
+
+		recipients.Insert(syntax.DID(pull.Repo.Did))
+		for _, p := range pull.Participants() {
+			recipients.Insert(syntax.DID(p))
+		}
+
+		entityType = "pull"
+		entityId = pull.AtUri().String()
+		repoId = &pull.Repo.Id
+		p := int64(pull.ID)
+		pullId = &p
+
+		for _, m := range mentions {
+			recipients.Remove(m)
+		}
+
+		n.notifyEvent(
+			ctx,
+			comment.Did,
+			recipients,
+			models.NotificationTypePullCommented,
+			entityType,
+			entityId,
+			repoId,
+			issueId,
+			pullId,
+		)
+	default:
+		return // no-op
+	}
+
 	n.notifyEvent(
 		ctx,
-		actorDid,
+		comment.Did,
 		sets.Collect(slices.Values(mentions)),
 		models.NotificationTypeUserMentioned,
 		entityType,
@@ -133,49 +216,32 @@ pullId,
 	)
 }
 
-func (n *databaseNotifier) NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
+func (n *databaseNotifier) DeleteComment(ctx context.Context, comment *models.Comment) {
+	// no-op
+}
+
+func (n *databaseNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {
 	l := log.FromContext(ctx)
 
-	issues, err := db.GetIssues(n.db, orm.FilterEq("at_uri", comment.Subject))
+	collaborators, err := db.GetCollaborators(n.db, orm.FilterEq("repo_did", string(issue.RepoDid)))
 	if err != nil {
-		l.Error("failed to get issues", "err", err)
-		return
-	}
-	if len(issues) == 0 {
-		l.Error("no issue found for", "err", comment.Subject)
+		l.Error("failed to fetch collaborators", "err", err)
 		return
 	}
-	issue := issues[0]
 
-	// built the recipients list:
-	// - the owner of the repo
-	// - | if the comment is a reply -> everybody on that thread
-	//   | if the comment is a top level -> just the issue owner
-	// - remove mentioned users from the recipients list
+	// build the recipients list
+	// - owner of the repo
+	// - collaborators in the repo
+	// - remove users already mentioned
 	recipients := sets.Singleton(syntax.DID(issue.Repo.Did))
-
-	if comment.IsReply() {
-		// if this comment is a reply, then notify everybody in that thread
-		parent := *comment.ReplyTo
-
-		// find the parent thread, and add all DIDs from here to the recipient list
-		for _, t := range issue.CommentList() {
-			if t.Self.AtUri() == syntax.ATURI(parent.Uri) {
-				for _, p := range t.Participants() {
-					recipients.Insert(p)
-				}
-			}
-		}
-	} else {
-		// not a reply, notify just the issue author
-		recipients.Insert(syntax.DID(issue.Did))
+	for _, c := range collaborators {
+		recipients.Insert(c.SubjectDid)
 	}
-
 	for _, m := range mentions {
 		recipients.Remove(m)
 	}
 
-	actorDid := syntax.DID(comment.Did)
+	actorDid := syntax.DID(issue.Did)
 	entityType := "issue"
 	entityId := issue.AtUri().String()
 	repoId := &issue.Repo.Id
@@ -186,7 +252,7 @@ n.notifyEvent(
 		ctx,
 		actorDid,
 		recipients,
-		models.NotificationTypeIssueCommented,
+		models.NotificationTypeIssueCreated,
 		entityType,
 		entityId,
 		repoId,
@@ -274,70 +340,6 @@ ctx,
 		actorDid,
 		recipients,
 		eventType,
-		entityType,
-		entityId,
-		repoId,
-		issueId,
-		pullId,
-	)
-}
-
-func (n *databaseNotifier) NewPullComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	l := log.FromContext(ctx)
-
-	subjectAt := syntax.ATURI(comment.Subject.Uri)
-	pull, err := db.GetPull(n.db,
-		orm.FilterEq("owner_did", subjectAt.Authority()),
-		orm.FilterEq("rkey", subjectAt.RecordKey()),
-	)
-	if err != nil {
-		l.Error("failed to get pull", "err", err)
-		return
-	}
-
-	repo, err := db.GetRepo(n.db, orm.FilterEq("repo_did", pull.RepoDid))
-	if err != nil {
-		l.Error("failed to get repos", "err", err)
-		return
-	}
-
-	// build up the recipients list:
-	// - repo owner
-	// - all pull participants
-	// - remove those already mentioned
-	recipients := sets.Singleton(syntax.DID(repo.Did))
-	for _, p := range pull.Participants() {
-		recipients.Insert(p)
-	}
-	for _, m := range mentions {
-		recipients.Remove(m)
-	}
-
-	actorDid := comment.Did
-	eventType := models.NotificationTypePullCommented
-	entityType := "pull"
-	entityId := pull.AtUri().String()
-	repoId := &repo.Id
-	var issueId *int64
-	p := int64(pull.ID)
-	pullId := &p
-
-	n.notifyEvent(
-		ctx,
-		actorDid,
-		recipients,
-		eventType,
-		entityType,
-		entityId,
-		repoId,
-		issueId,
-		pullId,
-	)
-	n.notifyEvent(
-		ctx,
-		actorDid,
-		sets.Collect(slices.Values(mentions)),
-		models.NotificationTypeUserMentioned,
 		entityType,
 		entityId,
 		repoId,
diff --git a/appview/notify/logging/notifier.go b/appview/notify/logging/notifier.go
--- a/appview/notify/logging/notifier.go
+++ b/appview/notify/logging/notifier.go
@@ -46,14 +46,18 @@ ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "DeleteStar"))
 	l.inner.DeleteStar(ctx, star)
 }
 
+func (l *loggingNotifier) NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
+	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "NewComment"))
+	l.inner.NewComment(ctx, comment, mentions)
+}
+func (l *loggingNotifier) DeleteComment(ctx context.Context, comment *models.Comment) {
+	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "DeleteComment"))
+	l.inner.DeleteComment(ctx, comment)
+}
+
 func (l *loggingNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {
 	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "NewIssue"))
 	l.inner.NewIssue(ctx, issue, mentions)
-}
-
-func (l *loggingNotifier) NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "NewIssueComment"))
-	l.inner.NewIssueComment(ctx, comment, mentions)
 }
 
 func (l *loggingNotifier) NewIssueState(ctx context.Context, actor syntax.DID, issue *models.Issue) {
@@ -89,11 +93,6 @@
 func (l *loggingNotifier) NewPull(ctx context.Context, pull *models.Pull) {
 	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "NewPull"))
 	l.inner.NewPull(ctx, pull)
-}
-
-func (l *loggingNotifier) NewPullComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	ctx = tlog.IntoContext(ctx, tlog.SubLogger(l.logger, "NewPullComment"))
-	l.inner.NewPullComment(ctx, comment, mentions)
 }
 
 func (l *loggingNotifier) NewPullState(ctx context.Context, actor syntax.DID, pull *models.Pull) {
diff --git a/appview/notify/merged_notifier.go b/appview/notify/merged_notifier.go
--- a/appview/notify/merged_notifier.go
+++ b/appview/notify/merged_notifier.go
@@ -50,12 +50,16 @@ func (m *mergedNotifier) DeleteStar(ctx context.Context, star *models.Star) {
 	m.fanout(func(n Notifier) { n.DeleteStar(ctx, star) })
 }
 
-func (m *mergedNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {
-	m.fanout(func(n Notifier) { n.NewIssue(ctx, issue, mentions) })
+func (m *mergedNotifier) NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
+	m.fanout(func(n Notifier) { n.NewComment(ctx, comment, mentions) })
 }
 
-func (m *mergedNotifier) NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	m.fanout(func(n Notifier) { n.NewIssueComment(ctx, comment, mentions) })
+func (m *mergedNotifier) DeleteComment(ctx context.Context, comment *models.Comment) {
+	m.fanout(func(n Notifier) { n.DeleteComment(ctx, comment) })
+}
+
+func (m *mergedNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {
+	m.fanout(func(n Notifier) { n.NewIssue(ctx, issue, mentions) })
 }
 
 func (m *mergedNotifier) NewIssueState(ctx context.Context, actor syntax.DID, issue *models.Issue) {
@@ -84,10 +88,6 @@ }
 
 func (m *mergedNotifier) NewPull(ctx context.Context, pull *models.Pull) {
 	m.fanout(func(n Notifier) { n.NewPull(ctx, pull) })
-}
-
-func (m *mergedNotifier) NewPullComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	m.fanout(func(n Notifier) { n.NewPullComment(ctx, comment, mentions) })
 }
 
 func (m *mergedNotifier) NewPullState(ctx context.Context, actor syntax.DID, pull *models.Pull) {
diff --git a/appview/notify/notifier.go b/appview/notify/notifier.go
--- a/appview/notify/notifier.go
+++ b/appview/notify/notifier.go
@@ -15,8 +15,10 @@
 	NewStar(ctx context.Context, star *models.Star)
 	DeleteStar(ctx context.Context, star *models.Star)
 
+	NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID)
+	DeleteComment(ctx context.Context, comment *models.Comment)
+
 	NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID)
-	NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID)
 	NewIssueState(ctx context.Context, actor syntax.DID, issue *models.Issue)
 	DeleteIssue(ctx context.Context, issue *models.Issue)
 
@@ -24,7 +26,6 @@ NewFollow(ctx context.Context, follow *models.Follow)
 	DeleteFollow(ctx context.Context, follow *models.Follow)
 
 	NewPull(ctx context.Context, pull *models.Pull)
-	NewPullComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID)
 	NewPullState(ctx context.Context, actor syntax.DID, pull *models.Pull)
 
 	NewIssueLabelOp(ctx context.Context, issue *models.Issue)
@@ -54,9 +55,11 @@
 func (m *BaseNotifier) NewStar(ctx context.Context, star *models.Star)    {}
 func (m *BaseNotifier) DeleteStar(ctx context.Context, star *models.Star) {}
 
-func (m *BaseNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {}
-func (m *BaseNotifier) NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
+func (m *BaseNotifier) NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
 }
+func (m *BaseNotifier) DeleteComment(ctx context.Context, comment *models.Comment) {}
+
+func (m *BaseNotifier) NewIssue(ctx context.Context, issue *models.Issue, mentions []syntax.DID) {}
 func (m *BaseNotifier) NewIssueState(ctx context.Context, actor syntax.DID, issue *models.Issue) {}
 func (m *BaseNotifier) DeleteIssue(ctx context.Context, issue *models.Issue)                     {}
 
@@ -66,9 +69,7 @@
 func (m *BaseNotifier) NewFollow(ctx context.Context, follow *models.Follow)    {}
 func (m *BaseNotifier) DeleteFollow(ctx context.Context, follow *models.Follow) {}
 
-func (m *BaseNotifier) NewPull(ctx context.Context, pull *models.Pull) {}
-func (m *BaseNotifier) NewPullComment(ctx context.Context, models *models.Comment, mentions []syntax.DID) {
-}
+func (m *BaseNotifier) NewPull(ctx context.Context, pull *models.Pull)                        {}
 func (m *BaseNotifier) NewPullState(ctx context.Context, actor syntax.DID, pull *models.Pull) {}
 
 func (m *BaseNotifier) UpdateProfile(ctx context.Context, profile *models.Profile) {}
diff --git a/appview/notify/posthog/notifier.go b/appview/notify/posthog/notifier.go
--- a/appview/notify/posthog/notifier.go
+++ b/appview/notify/posthog/notifier.go
@@ -108,20 +108,6 @@ log.Println("failed to enqueue posthog event:", err)
 	}
 }
 
-func (n *posthogNotifier) NewPullComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
-	err := n.client.Enqueue(posthog.Capture{
-		DistinctId: comment.Did.String(),
-		Event:      "new_pull_comment",
-		Properties: posthog.Properties{
-			"pull_at":  comment.Subject,
-			"mentions": mentions,
-		},
-	})
-	if err != nil {
-		log.Println("failed to enqueue posthog event:", err)
-	}
-}
-
 func (n *posthogNotifier) NewPullClosed(ctx context.Context, pull *models.Pull) {
 	err := n.client.Enqueue(posthog.Capture{
 		DistinctId: pull.OwnerDid,
@@ -212,13 +198,13 @@ log.Println("failed to enqueue posthog event:", err)
 	}
 }
 
-func (n *posthogNotifier) NewIssueComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
+func (n *posthogNotifier) NewComment(ctx context.Context, comment *models.Comment, mentions []syntax.DID) {
 	err := n.client.Enqueue(posthog.Capture{
 		DistinctId: comment.Did.String(),
-		Event:      "new_issue_comment",
+		Event:      "new_comment",
 		Properties: posthog.Properties{
-			"issue_at": comment.Subject.Uri,
-			"mentions": mentions,
+			"subject_at": comment.Subject.Uri,
+			"mentions":   mentions,
 		},
 	})
 	if err != nil {
diff --git a/appview/pulls/comment.go b/appview/pulls/comment.go
--- a/appview/pulls/comment.go
+++ b/appview/pulls/comment.go
@@ -172,7 +172,7 @@ s.pages.Notice(w, "pull-comment", "Failed to create comment.")
 			return
 		}
 
-		s.notifier.NewPullComment(r.Context(), &comment, mentions)
+		s.notifier.NewComment(r.Context(), &comment, mentions)
 
 		ownerSlashRepo := reporesolver.GetBaseRepoPath(r, f)
 		s.pages.HxLocation(w, fmt.Sprintf("/%s/pulls/%d#comment-%d", ownerSlashRepo, pull.PullId, comment.Id))