If eBay really cared about buyers, it would log item Description and end price with every Feedback entry. This way after auctions have expired (no longer available) users would be able to distinguish between a seller who successfully sold 2000 $1 Dell coupons from a seller who sold 2000 high-price items successfully.
As it is, an unscrupulous seller can build up their eBay Feedback selling cheap junk perfectly and then, after waiting for those auctions to expire, sell a big ticket item and defraud the buyer who thought the seller was an established, reliable, major eBay player.
To fight this slightly, I describe the exact item and purchase price in every Feedback entry I write as an eBay buyer.