Check the terms of sale carefully guys. This is a direct except:
'At the request of the auction company, this auction permits bids to be placed by the auctioneer, an employee of the auctioneer, or the seller or an agent on the seller's behalf. While Proxibid's Unified User Agreement prohibits this behavior, in accordance with UCC 2-328, this auction is permitted to engage in this activity by providing this clear disclosure to you, the bidder.'
And part 2, same auction:
'This auction company has requested and been granted access to see all bids placed including any maximum pre-bids. This auction is permitted to engage in this activity by providing this clear disclosure to you, the bidder.'
So, in a nutshell, it is somehow okay to allow the seller to not only see the bids before the auction starts, but to place their own bids. Sellers are plain kicked off of Ebay for that crap, it's called shill bidding, and reputable companies stay away from it like the plague. But not Proxibid.