There is a (new) community without mods: https://lemmings.world/c/investiranje There may be more but I haven’t looked. I doubt that the admin wants their instance to be filled up with modless communities that do not contain any posts. I therefore suggest that for new communities to be made, people may have to get explicit approval from an admin. Or as an alternative, perhaps remove c’s that have been moderator-less for a certain time?
I don’t really want to forbid people from creating communities, but you’re right that modless communities make no sense, I’ll be looking at deleting them.