I found it rather easy to get signed up, just had to wait for the admin to actually approve the application. Otherwise it was pretty easy.

However, I do see a HUGE benefit to “load balancing” as you are mentioning. Where you sign up for a master server and then replicated to the others that are more applicable. I’m surprised this isn’t already a process as this is very common in gaming and proxied sites.

You can on Mastodon, you just export your data, delete your account, create new account on another instance and upload your data and it’s like what you said!