I reported this and 2-3 other items on same seller where the same (5) feedback, 100% bidder activity was bidding up the price. He had about 10-15 items for sale as I recall, now today they are all removed. I was PO'd as I'd been interested, had followed that card for days and had a snipe in until I saw the history and previous listing. Pulled it all and reported it - I wasn't sure if/what eBay did when they were alerted to shilling..?
I know shilling happens .. and a low feedback, 100% activity bidder doesn't necessarily mean its shilling - - BUT, in this case, the low feedback 100%'er was shown to have won the Koufax PSA7 123 on 10/25 @ $1,100 - then the card was quietly relisted with the same bidder bidding up the price again! Bidding that up as well as other items the seller had (coins)
To me, shilling is in the same bucket as the reprints listing as authentic crowd. It's fraud.