I read some comments per 2nd offers per Ebay.. how usually these were a scam. Does not the seller have to pay commission on these first wins? Or can/does the seller just let the 'scam buyer' off the hook.. 'forgiving' the win and then making the score on 2nd offer.. thus incurring no fees on the 'scam win'?

NO "*hit-bay" fan at all here... used to use them for non bike sales back when.. before the fees got wayyy otta hand. They need some real COMPETITION.