Nobody cares about ebay shill bidding but

[bigfanNY]

No need to wait. You ask consigners to sign an agreement that says if the shill the auction that he will refund the bidders money past the first bid from the consigner and charge them full commission on the auction. Then they will be banned from bidding or consigneing to his future auctions. And yes he is large enough and this is important enough that he or one of his employees should look at each auctions results.
If enough shill bidding could be proved to EBAY they would have no alternative but to ban him from their site. Then everybody loses. But he has to run a fair site if he cant then ultimatly he will lose the ability to run his business on EBAY.
Based on the information posted here I would never consign or bid on any of his auctions and I am not happy saying that because I have things to sell and he gets decent prices, and many times he posts items that I would like to own.