Even with rules it would still come down to each members word over another. Ebay has set policies that are pretty tight and it still comes down to each persons word over another. Here we don't have any of the protocols in place and frankly shouldn't since this is a site about sharing information not selling and buying. The classifieds here are a luxury not a necessity.
As we've posted at the top of the classifieds forum, "the buyer and seller are the sole parties in the transactions". If it became an issue I would personally vote to get rid of them.
