Look, .... if eBay was not opposed to the sniping of auctions, they could easily provide their own sniping feature, just as well as the proxy bidding system. It would probably entirely replace regular proxy bidding, because once understood by their buying customers, who would want to have their bids appear before the end of the auction ? At least it might foster a different style of auction, like a sealed-bid auction. The snipe-able auction would be at the choice of the seller.
For now, eBay seems to have effectively undermined the reliability of sniping services, such that only those bidders who are not end-users would care to risk snipe bidding. Anyone who really wants that item, who is invested in getting it for themselves, should just use the eBay auction system as it is normally operated - with proxy bidding, or be present at the auction end with a manually-placed "snipe" bid.