What made everybody move from a corporate social media platform to another corporate social media platform instead of the fediverse?
After all, the Fediverse and Activitypub is much more mature than Bluesky and the copycat AT protocol or Threads and … whatever they use.
Threads has close ties with Instagram
(Threads uses opt-out ActivityPub.)
That’s not true. I can neither opt my test account in nor out of ActivityPub. It’s simply not available to Mastodon.