Right now there are people who sign up with an instance like lemmy.world, who then create loads of communities, because they don’t fully understand the nature of things and can’t quite believe that the URLs for lots of different IPs are available. For Reddit, if you snagged the likes of r/starwars early on, that gave you some power. For Lemmy, it’s meaningless: if you just want to moderate 100 communities, and not spend time actually building a Community up, then you’ll just be overtaken by the Community at one of the many other instances.