They've only been the most popular instance for like 3 days and the mods there are already power tripping.

Unfortunately, "Defederating" is the same as "Banning yourself from everybody else", so I trust that people will vote with their (virtual) feet and move to instances with a more diverse set of federations.

They are not power tripping, if you've read their posts you'd know that they have a very concrete view of the story of community they want to build and unfortunately their manpower and moderation tools just don't allow them to stick to it while staying federated with rapidly growing communities.

Which is why I'll say it again and again, the fediverse might've been the wrong choice for building a community like they want