Ple-Sen
I could try to identify who I find suspicious based on their psychology, but I'm not very good at that, and I don't know or remember the playing styles of other players very well. I would only mention Loca, who hardly participates and offers little constructive input, but that could easily be due to being busy or having a weak interest in the game. Or it could be due to his playing style. In other words, I don't think this is a strong enough reason for a ban.
Now, let's look at the snail riddles. If we still consider "periny" to be the answer, we can build this chain:
Periny -> Sardanapal -> Assyria -> Judean Kingdom -> David -> Medj's avatar
Well, that's what came to mind. I'm not claiming this is a high-quality solution. And I apologize to Medj that this is the third (or is it?) time I've identified him as a Berber based on the list in the newspaper post.