Three behavior changes: 1. New Metric toggle (Creates / Updates / Deletes / DIDs). The right column and sparkline both reflect the chosen metric. DIDs (unique creators) is the new default — the most "interesting humans" view when scanning what the network is up to. 2. The Bluesky filter now only applies in Trending mode. Top is the absolute leaders view; hiding app.bsky.* there was misleading (you'd see Tangled with 700 creates above Bluesky's 14M). Trending keeps the filter — bsky doesn't move much in % terms so it would crowd the table with sideways activity. 3. Default metric is DIDs (was creates). Default mode is still Trending, default window is still 7d. Implementation: /collections supports server-sort by records-created or dids-estimate. For Creates / DIDs we read from /collections directly. For Updates / Deletes the API can't sort by them, so we fetch a candidate pool ordered by records-created and re-rank client-side via /collections/stats (which returns all four metrics). Sparklines / timeseries already had all four metrics per bucket so they're free to project.