I am pro.
First of all I despise discussion on politics, religion and some similar topics.
As you have noticed these discussions do happen in some of the forums and unless you would be inclined to stop them, they would deserve a separate place to keep the discussion in other forums from straying to these topics.
You would need some really good moderators for it and possibly a reminder that forum rules apply there too since it will at times get heated and disrespectful, it almost seems in the nature of the topic. The other result in such a forum could be seeing traffic from outside you may not have had much of before ('lamers' and spammers). It would mean more traffic but possibly at a high cost.
Just my point of view.
Last edited by bart; 12-31-2007 at 04:46 PM.
Reason: spelling errors, non native English speaker here :)