I think Eham should take an idea from QRZ and make people place their calls on paper or better yet a QSL card beside the items for sale. People are being ripped off too much by impersonators and the more caution taken seems to be the best course of action.
I showed that it's still easy to fake a listing w/o much graphics editing chops. It's almost funny that, when the OP doesn't conform to their image requirements, QRZ's classifieds police deletes the posting but, leaves the subject and poster's callsign intact
. If I was interested, I could still contact the OP about whatever it was he/she was selling.