Although I know about proxy style auctions work, I was also a little shocked by the suddenness of the Enter the bid amount... OK. Buy points... OOK. Enter cred

Although I know about proxy style auctions work, I was also a little shocked by the suddenness of the Enter the bid amount... OK. Buy points... OOK. Enter credit card... OOOOK. You're about to bid... OMG OMG OMG! Are you sure you want to bid?... Yes! Yes! Yes! Oh, sorry, you've been outbid. Granted, this made me run for the PayPal link ;) I think a wording change should be enough for people who don't know how proxy bidding works. Instead of saying "Current bid", say "Second highest bid [?]" (with the [?] being a link). When someone clicks on it, explain how proxy style auctions work in very plain terms. Ditto for the "Your max bid" - say "Maximum you're willing to bid [?]". I'd also suggest a slight UX change: maybe slow down the process a little so that you can see "You've bid 200 points! Comparing bids... you've been outbid.