You can post For Sale and Wanted Ads in the Classified forums as long as the item is radio gear related. As far as any other policy regarding transactions, you are on your own when buying anything off the internet to do research on the seller and/or product. You can always post asking if anyone has dealt with a paticular member or not. Hope this is what you were looking for
that the best way. go on the rr tavern and ask if anyone has traded/sell or buy from this person then you could see if the person is good or not. i been trading on and this board and others boards for years now. if someone want to buy or trade i can provide references.