Because remote content originates on servers the user doesn't control, the client should make provenance clear and give users/admins moderation levers.

What to do

• Clearly indicate replica/remote provenance on spaces, DMs, and messages (building on the origin badge work).
• Allow blocking/reporting a remote user by qualified ID and hiding their content locally.
• Consider an indicator when a peer is untrusted or unreachable.

Acceptance

• Users can identify remote content and block a remote user; blocked remote content is hidden locally.

Server reference

• Trust state per peer: src/routes/admin.rs, src/db/federation.rs; authority/anti-spoof hardening: commits 6930907, 7f82f6a, 49c7ed4.

Server reference — accordserver branch claude/federated-servers-xlydlj.