I can't imagine anything worse - a kind of survival bring and buy.
The potential for problems is immense. This forum has enough trouble with the likes of "000anna" and her dodgy russian cosmetics company trying to sell their junk here, without having a trade/buy/sell section.
Opening the doors to a trade forum would invite every conman this side of the Urals to setup business here.
This site (IMHO) should remain information only, with Doug being the only trader allowed.