Not sure why are you supposing it would adversely affect any of us at all? I'd say I'd have no fear at all of AS becoming widespread, insofar as I'm dealing with objects whose value to me I have a more or less clear idea of. To some extent, maybe seeing early posted bids could provide further information on how I should value them, but that's very rarely the case. In researching values, generally I'd rely only on sale prices, i.e. past winning bids, for similar items, and pay no or very little attention to bid history. Occasionally I might "nip" at an early bidder to see how serious they are, but already there I'm acting a bit irrationally and not like a true Jedi sniper.
What if ebay changed its bidding format, so that no longer were bids posted continuously, as they are entered, during the period of the auction, but rather all bids were held in suspense and entered only at the last second. (This would be closer to a true "Vickrey auction"-- see
http://en.wikipedia.org/wiki/Sealed_second-price_auction). This amounts to mcuh the same thing as everyone relying on AS. Why such a change should affect my behavior significantly (other than to save me my already minimal AS cost) or affect how I value goods at all, I can't see. If you're a seller, it's a different story.