Totally agree, that's the fundamental principle of Mastodon and I like it.

But I think some people are just looking for "the other Twitter." Mastodon is a philosophically different idea to Twitter's centralized moderation.

I think other conversations about the network affect are apt here. Yeah, you can move to a different server all you want but in reality people want to be where other people are and don't actually want to migrate if they can help it. People aggregating in one place is the antithesis of the Mastodon federation.

If Mastodon does really catch on, it'll be a single digit number of high population servers that probably all end up having similar content moderation policy to Twitter to attract the most number of users. There won't be a grand utopia of a flat distribution of uniquely moderated servers.