I wasn't here when the whole GameSnake drama was going on, at least I was not a Clan member at the time, so all of this is goes above my head in terms of care-o-meter.
The only things I know about GameSnake are from hearsay, the most memorable of them being that he was a mod on the FleshLight forums! Lulz.
I do think however that we should at least attempt to behave with civility towards even those who have sinned against us in the past publicly (in the public forums), lest we ignore them completely. Simply for the sake of outside perceptions, despite what little outside perceptions are probably made about our small community.
But I'm a bit of a passive aggressive kind of guy, and if I gave a rat's ass about GameSnake being here, I'd probably set up a clandestine campaign amongst my fellow clan members to boycott posting in any of his threads, lobby against replying to any of his posts, and just advocate in the shadows to completely ignore all his forum activity, eventually leading to his discontinued participation on the forum... all while giving the impression that his presence here doesn't bother me.