I've felt fishiness before on some auctions myself and did some fishing around some time ago. Some people on this list were asking how to identify a bidder's activity if his/her username is anonymous. One way to identify a bidder's bidding activity on an auction is to look at the bid history and spot their feedback number and track it through its history that way. Also, even though it's anonymous, they still have the same code for each particular bidder on a given item. For example, even if it says j***g, it will say the same code each time they bid. If you click on their unique anonymous code it will give their actual bidding history that Chas was referring to. At least that's how I understand it.
Thanks,
Steven Mills
Portland, Oregon
United States of America!