Thanks KingOfSports; hopefully we can convince some winners to come back us up. I'm hoping the miner who won the last auction might consider posting once they claim and receive their prize.
the problem is that penny auction sites obfuscate the house's edge and makes it really easy for the house to cheat.
We are actually more open than typical penny auction sites. They usually encourage users to buy "credits" and then bid with those. We have all bids openly displayed in the blockchain, with no credit system providing a layer of abstraction from the price.
I would love it if we could 100% prove that we are not bidding on the auctions, but there is no way I can think of; other than creating a system where people have to sign-in with facebook and bid with credits rather than sending from any address. You could then link back to people's facebook profiles, but that would spoil the fact that anyone can currently play without publicly revealing who they are.
Since we are being honest, it would be much better for us to have some way to prove that we are. If you have any suggestions on how we can be more open or prove that we are not bidding, I am all ears!