From this post
by Mike Macgirvan:
There've been a lot of developments on the Zot6 front in the last week. I'm not even sure where to start. OK, let me start here...
If you are interested in a "fediverse" of "social networking projects" which can all communicate and work together seamlessly, it is time for you to get off the Zot6 train. It is not stopping at your station.
Zot6 is standing up for the right of people to have nomadic identities, privacy, and granular permissions over their profiles and content (including their media content). It is also standing up for the right of people to not be forced to accept spam or unsolicited replies to their content from people they don't know or never heard of (or who they have even blocked). Unfortunately these rights are incompatible with the rest of the so-called "fediverse" (and "federation"). Hence all connections to those networks are being severed.
How will this effect us, @imp
(I think I could personally handle a 'fanzilla' w/o ActivityPub. I have a masto account, and peertube can be followed via RSS - I think it'd be worth it for the lack of cross-platorm confusion re: deletion etc)