@kissane Certainly familiar: you need to know about Mastodon before you can join Mastodon.
For the reference, no way would I change sever. Not because the instance I'm on is great (is it? I don't know!) but because the migration process seems like it might be fraught with hazard.
So this got me to thinking. Does migration need to be the user's problem? By analysing preferences and usage patterns, could instances exchange users, gradually ensuring that everyone ends up in an appropriate place?