After reading about Souljah's scam and other people's bad (or good!) selling experiences, It'd be a good idea to have a feedback system. On your profile, you could have a part where people you sold to or bought from can put 'good seller' or 'scam artist' or something. Or even have a list of people's names who are willing to sell/buy stuff (pm people to ask, and pm a mod to get your name on the list in the future) and then have 5 stars for a great seller, 0 for a bad seller. The ebay system would do wonders here.
Money's clean cause we scrub it good. With guns and gasoline we're gonna save the world. Nothing's obscene if we only close our eyes, boys and girls, welcome to this Joyride. -dmb