just thought i would throw this out there.....since this is a fairly new community, why not introduce something like they did at my350z? i dont see any downside of making every for sale thread include pictures, and a sign with your screen name, and date.
it might be a pain, but id be willing to bet everyone would happy to do a little more work to ensure that what you are buying is both in possession of and in the condition stated by the seller.