We do warn in the Guidelines, "caveat emptor". The Classifieds is a service SASS provides for Members to exchange equipment. We make the assumption that SASS Members (who are the only ones who may sell) are honest and reliable folks. That is the case in 99.99% of the sales. We cannot prevent that 0.01% from selling junk. We do try to monitor repeated complaints about a particular seller and have banned some from selling. The only way we know is when parts point out a bad deal in a simple non-inflammatory way as did Tell Sackett. He did not mention the seller, however, which was truly the Cowboy Way. We do not permit seller bashing on the Classifieds, but a simple warning about a particular seller could be helpful to other buyers. Sending us a report is another way to let us know about bad sellers. Most of the time, however, these are one-off sellers getting rid of junk, never to be seen again.