Given eBay's history of "solving" problems with cover-ups and changes that really don't help, I can pretty much guarantee that before they do anything like this or any other elaborate programming solutions that anyone has suggested, they will simply stop showing the retracted bid count. Then nobody will know which listings to gripe about (at least, not with any certainty). No griping = problem solved from eBay's standpoint.
Still trying to figure out how to get notification of someone retracting a bid on one of my auctions. I get them when someone withdraws a Best Offer, but not for retracted bids.