Why is that interesting? You can easily know anyone's "mixed" up ebay id if you know their real id.
(1) View a list of their completed auctions via their real username:
http://cgi6.ebay.com/ws/eBayISAPI.dl...sort=12&_rdc=1
(2) Click on one of the auctions, an auction that had bids:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=150413288712
(3) Click on the bids link:
http://offer.ebay.com/ws/eBayISAPI.d...m=150413288712
There you go, the winning bidder, we know is aircorp2k and so that must be his mixed up id as the winning bidder.