Is this going to be brought up every single auction where there are anonymous bids? To me it's simple, if someone wants to do shill bidding then they will do it no matter if it's anonymously or with a different account. You can't stop it even if you try, so in the end you will just have to trust that the auctioneer is being on the up and up.
All that being said; I believe i3oilermaker is a serious businessman, and he wouldn't compromise his reputation by shill bidding.
Good luck with this awesome auction. Don't be shy to bid, guys and gals!