Setting things up on fediverse is overly complicated and could be made easier.
The biggest problem is it really isn’t all that clear what the pros and cons are various instances are, and the truth is that for the most part with the exception of a few particular instances it really doesn’t matter.
What might make the most sense is to have a website people can sign up on and then it just registers their account on one of a few instances to spread the load. Obviously that list I would have to be curated so it didn’t include obvious problematic instances,but it wouldn’t be that hard to do that. And that would make it as easy as threads is which basically is just an instance when all said and done.