The trouble with these kind of unscrupulous people is that they don't seem to care that they could potentially ruin the joy of sharing for all of us.
I say give them no quarter..dob them in at every turn. Leave the sharing for the real fans and pull these money hungry weeds whenever they appear.
It's amazing how little information you need to get a better picture of someone.
This is a teenage boarder at a Catholic Grammar School in Northern Ireland who gets three hours of supervised study each evening during which time he is posting illegal adverts for copyrighted material on ebay.
I have a plan to stop him - nothing nasty (I'm too devious and subtle), but I'm giving him the option of stopping voluntarily first.