That's BS... The least they should do it leave negative feedback up if it's warranted. I've got screenshots of emails and CGN communications if necessary to provide my case. As well as screenshots of his ad in case mamas boy tries to hide and take it down.
Its sad i may start doing that as well to avoid possible scams or complaints. But iwould hope the admins would have some kind of way to record comms and ad pics/descriptions incase of a dispute?