Well spreading the userbase is the ideal situation… when 1 becomes too big it gets an extreme server load and too much control over content created there… The whole idea of lemmy is to spread out… I can imagine if instance owners get this idea they would temporarily suspend account registration on their own trying to push alternative instances to maintain a good decentralized user base.
People should be up voting this as it is the answer and not a bunch of bean jokes… But the jokes are getting the up votes… You do realize this is nostupidquestion not “be an unhelpful ass” community