A section for this might be a good thing to get started early. A lot of us know eachother and have had dealing with eachother in the past and could probably get a head start on leaving some feedback so people can feel more at ease if they don't know the person they are delaing with.
I have one set-up at KCPMC that has worked very well so far. Basically just an added board titled, oddly enough, "Buyer/Seller Feedback" with very few rules. Thread titles must include the username of the person your leaving feedback for, followed either by good or bad. Posts must state what item(s) were purchased or sold followed by a brief description of how you feel about the overall transaction. Nothing else is allowed in that board and our members have been asked to keep it clean and courtious. So far, so good.
