I bid on an item starting at $15 and set my max bid to $40, as that's the maximum I'm comfortable paying before shipping and all that. A few days later, the auction got another bid, but the amount was odd. It was precisely less than $40, so I'm still "winning" the auction, but at $40 now. The odds of another normal bidder making that exact bid are slim, as my max bid amount was (supposedly) hidden. I suspect a Goodwill employee saw my max bid and bumped it up with a shill bid. The auction ends today, and while I did set a $40 max bid and will pay it for my item, it feels like I got scammed. Do I have absolute proof? No, but it seems suspicious.
I suppose I could go back to the old way of entering a starting bid and manually increasing it as needed. But really, I should just take my online shopping elsewhere.