@tacoface Essentially, an attempt to create and organize a unified set of rules for various instances to follow. See
https://ufoi.org/In itself, it doesn't sound bad, but I believe where people had problems is that you were signing up to accept fediblocks from other member instances without question. Also, the main person behind it is a controversial weirdo who has been claiming weird shit about Mastodon's creator on Reddit, calling him a nazi and shit like that.
So I think that maybe your instance is one of those that signed up to be part of it and now you're being caught in the crosshairs of servers that not only don't want to take part, but actively do not want to federate with those member instances. There could also be more issues that I'm not aware of as well but that's my understanding.