@TheCurator: What to do when a guy keeps calling everyone alts?

First, thanks for your expedient answer to my last thread.

So there's this guy on the Concepts and Creations board. You can't miss him, he's the creator of the thread that got over 90 replies overnight. I've been watching him, and very often he'll accuse other people of being alts made to downvote them, no matter how improbable that is (who has time to get 800+ wins on accounts from entirely different regions?).

What's the proper approach to take here? I've seen maybe two of his posts get deleted out of the swarms of posts he makes, and he's not really contributing much that's productive - check the post history if you don't believe me.

If this is a little too on-the-nose and gets deleted as per the no-naming policy on the boards, can you at least tell me what to do in the reason for deleting the thread?

Thank you for your consideration.