I poked around the Activity Stream docs a while back. And.. as a pretend expert :) started wondering: In the big bad messy real world (super serious business), how does one on such a decentralized (social) network thoroughly:
Block specific users from viewing Block specific users from following Block specific users from interacting Delete previous local/remote content from specific users following Delete previous local/remote interactions from specific users interacting ActivityPub is an open/transparent protocol (amazing) but for adoption, the expectation/reality of many users online anywhere (even public networks) is favourable discoverability not discoverability itself.. however contradictory/debatable. That’s probably easy/possible centralized but stupid hard/impossible decentralized.