>If they had a trading section of the boards there would most likely be some shmuck who rips someone off. Then the ripoffee would probably blame PGC and it would be an annoying mess.
I wouldn't think that'd be a problem as long as PGC put a disclaimer up... many sites have trading boards on 'em...
And, at least, with a trading board, it'd be easier to post about bad traders than if the trades only took place via PMs...