moreReplies was computed from the PARENT's unrendered sibling count and assigned to every child reply, so a reply with zero replies still showed 'Read 2 more replies' (those 2 were the parent's unshown siblings). moreReplies is supposed to be about a post's OWN unshown children. Now each reply's moreReplies is derived from its own replyCount: 0 when we fully expand its children, or the remainder when we hit the depth/branchingFactor cap. Verified against a real leaf reply (replyCount 0 -> moreReplies 0, no prompt).