The one thing Lemmy needs to survive long-term is more active users.
They don’t need to be in the same instance
because if there’s one thing new users implicitly don’t understand, it’s how federation works.
Then we take that as an opportunity to educate them instead of tricking them out into believing that it is a good idea to put them all in the same server.
A decent portion of people who try to sign up and fail will just give up and go back to reddit
They will also go back to reddit if they join a server that is constantly having outages.