Gregory's Server
This is an excellent theory from @J12t of what's driving Meta's #P92 ActivityPub adoption:
"...the EU’s Digital Services Act is the most likely reason why Meta is implementing ActivityPub in its upcoming Twitter competitor 'P92', and that ActivityPub is really the only game in town that meets Meta’s requirements for interop for 'P92'"
If that's the case, ActivityPub purists better be prepared for a mud-fight with the W3C about standards.