You know, Gunny and I have discussed this idea on several on several occasions. It was made clear to me that I would be responsible for the forum and I even so far as to draw up a set of rules. However, with our current population at USMB, I just don't think it would work. The only way to enforce such a forum would be to delete posts, issue in fractions and ban the hell out of users. I just don't want to create that kind of environment here, even if it limited to just one forum. That is why I haven't pressed the issue.
I can see the infractions and banning as a problem. But, maybe don't delete posts or issue infractions. Perhaps just start a garbage thread and move nonsensical trolls, baits, and debate violations to the garbage thread (in the lame zone, maybe, so that they get no responses).
It would require a lot of moderation, though, considering the population, as you said.