[Gigachad]

There's also the problem where selecting the server is quite a consequential choice which users who are brand new have no way to make a proper choice on. The owner of the server you choose has access to all of your data and the ability to delete your account or shut down the server at any time.

[HugoTea]

This is the same for every internet service, and the primary experience when signing up to big centralised services like Facebook, LinkedIn or Twitter. If they think your account is suspicious in any way, instantly gone with no way to appeal, I've seen a number of friends experience this recently and they're not even outliers using a VPN or 'unusual' email or anything. At least with federated services, you have the opportunity to keep backups of your profile and sign-up with another instance whenever you want.