Out of interest, is everyone happy with the 100 post requirement for sales? What is the experience of users, now that it has been in place for a few years? Would a reduced postcount requirement to access sales be preferable or bring a return to fraudulent users?
For a Forum of this membership size, the 100 Post count is fine. As said, the more localized Forums (My local one included) does seem to be infested with 1 Post sellers, or sellers that aren't local to the site in question.