Why Has GavelThief Closed Down?
After long talks with eBay, we have made the executive decision to close down GavelThief for a little while for several reasons. Senior members of eBay's security staff have decided to do everything in their power to shut down GavelThief for reasons that they will not specify. One eBay support personnel with whom we spoke stated that GavelThief simply was too successful - it placed too many bids from too many users too close to the ends of the auctions it sniped. Although far more superior and more secure, GavelThief does not have the rapport with eBay that other auction sniping services seem to have. From eBay's perspective, we are just another liability with a large database that contains users' eBay login credentials (which by the way are very heavily encrypted).
Basically, if eBay truly wants to shut down an online auction sniping service, they can. eBay flags users' accounts and IP addresses for any type of suspicious activity (i.e. multiple users logging in from the same IP address, such as in the case of an online sniping service). Even if the auction sniping service switches servers, IP addresses, or domain names, those users' accounts are still flagged. Once the 'new' service logs into those users' accounts, server flagging starts all over again. The flags ensure that whoever is logging into an eBay account from the flagged IP address is forced to pass CAPTCHA verification before continuing. It is practically impossible at this point to successfully bypass eBay's CAPTCHA encryption.