I'm not sure I see what the issue is... stuffty servers get stuffty players, so it's not like you're losing out on high value players. Why does it matter if SuperPikachuresearch69 wants to host a pokemon RPG and it's stuff, let him. Half the point of Blockland is to have fun (the other half is to completely demoralize everyone else.) If he gets 20 players, good for him. If he gets 50, good for him. Maybe they'll actually have fun.
What are you gonna do about it? Petition the servers? Have badspot key-revoke anyone who hosts a pokemon RPG? make a drama?