Hah. This is so true. Most of our members are like that sadly, so having a debate sub-forum would definitely devolve into the same spam pit that the ThunderDome did back in the day. No matter how strictly we moderate it, we cannot stop the masses of jerks who flame for fun, nor can we stop honest members from giving someone a good lambasting on one of their bad days via this subforum. This is simply a reality of the internet, and the staff and a goodly portion of sensible members, wish to keep these sorts of people away from PC.
PC is bad enough as it is when it comes to drama, I know that for a fact. Such is reality, that drama of this sort is unavoidable, but it's at a tolerable level now.
Therefore I do respect the staff's opinion of this idea, and I even recognize that despite it being a well intentioned idea, our member base simply can't effectively utilize it without causing PC to heat up by 20 or 30 degrees.
Part of the edge that PC has over other forums of it's size class is, that it's tropically pleasant weather all the time, meaning that despite all the drama that does go on, it's not so bad that you feel as if you have to act like a "extreme donkey" to be treated decently.
With all that being said, I'll give some canon advice. If you seriously wish to have some serious debate ability, you could convince a few VIP members to donate some blog entries to whatever you want to debate about, and use those to actively debate with people...within PC rules of course. That and having the hosting member act as an aggressive moderator for the discussion. It's definitely doable, and it could easily be done within a social group as well. Small efforts such as this have a much lower chance of attracting immature attention, and word of mouth can spread amongst intellectuals, thus allowing each person to invite people they know as mature to join the discussion. All of this can be done without troubling the staff overmuch about worrying about how it will affect PC's image, because it's happening in the background, instead of out in a public venue such as a subforum.