The trouble with decentralized federation social media servers is the weight of the network falls upon whoever volunteered to host the program at the domain name in the first place, and sometimes the weight is too much to handle.
The solution is, as we all already know, self-authenticating messages that do not rely on any one server. Do we want to call this Scuttlebot? Do we want to call this Nostr? Does Bluesky even qualify? Well, I'm sure we'll figure it out eventually with enough minds trained upon the problem.