Afaik, whenever an Activitypub instance has defederated from another it has always had to do with some combination of bad user behavior, poor moderation, and/or spam. Are the various instance admins who have decided to preemptively block threads.net simply convinced that these traits will be inevitable with it? Is it more of a symbolic move, because we all hate Meta? Or is the idea to just maintain a barrier (albeit a porous one) between us and the part of the Internet inhabited by our chuddy relatives?
(For my part, I’m working on setting up my own Lemmy and/or Pixelfed instance(s) and I do not currently intend to defederate.)
I’ve pointed it out a few times, but I think it still bears repeating.
Meta have done a lot of open source development, and in that way you’re using “meta” products daily. They are the people behind React and GraphQL, for example.
React (and React native, also them) is one of the biggest JavaScript frameworks, and GraphQL is an alternative to REST api’s that brings solutions to many problems around REST api’s.
I can almost guarantee you that some of the pages you visit in a day use at least one of those.
They also have a lot of other things. You might have heard of pytorch, a major library for developing and running AI projects.
Just have a look at https://github.com/facebook and https://github.com/facebookresearch/
Edit: to clarify, my point is that maybe meta only thinks of itself, but technology wise they do it pretty altruistic and help the related technological communities a lot.