I probably spend about 3/4 hour per day total in two or three sessions sorting the ads out for the homeworkshop site.
One plus point on this site is that every ad has to be approved before it becomes public so you don't get to see tall the Bulgarian crap that gets posted but having said that it doesn't stop the direct replies which we never see or have any control over. It does help that I ban whole foreign ISP's
Lets face it who is going to deal with someone who sounds shady, will need ooddles of shipping costs.
They glean these pictures from the like of Ebay, if you are not certain ask for a picture taked from a certain angle, back, side etc. No way they can do this if they don't have the goods. Ask for a rule to be included in the picture,
Most of these scams are that transparent though that they stick out like a sore thumb