Players who make alternate accounts to grind exp

I hate people who do this. They make public lobbies named exp farms. Then kick everyone who joins and make a ton of alternate accounts to get easy levels. One player that does this nearly every day is: Earnest. It disgusts me and there needs to be some way to limit the amount of accounts that can be created with one email.

 

It's unlikely that they do this in SSLS since you'd have to purchase multiple copies. The game is dirt cheap but I wouldn't spend extra $30 to become a high level player, let alone you must grind for hours for it. He could be waiting for his friends though.