“Their method was simple. They bought cheap paintings at estate sales, antique shops, small auction houses and even garage sales, then turned around and offered them for sale on eBay. They bid against each other (shill bidding) to drive up the prices and wrote descriptions of the art that suggested the sellers didn’t know the extent of the “treasures” they owned. They listed art under a wide range of user IDs (legitimate) and complimented each other’s false practices (illegitimate).”