Did they ever address the problem of migration from a bad server? For example, a scenario where your server dies and does not return. Or a malicious actor take

Did they ever address the problem of migration from a bad server? For example, a scenario where your server dies and does not return. Or a malicious actor takes over and bans the user base. Or a honeypot encouraging user account migration, followed by bans. In all 3 cases, you are effectively screwed the moment you migrate to a malicious server, or your server becomes malicious. I remember blue sky trying to address this by tying your identity to a DNS record or something, but it's a severe limitation in anything trying to be decentralized