Edited sentence: After acquiring paypal it has become more than a venue by listing in auctions whether the buyer accepts paypal (no other payment options listed) and allowing buyers to sort by paypal.Beginning in January 2006, ebay now prohibits any online payment system except Paypal, as stated here.Ebay deceptively gives bidpay.Ebay has previously stated that it is just a venue.Ebay specifically prohibits E-gold, a legitimate competitor to Paypal.In August 2005, it required that sellers who take paypal not refuse credit card payments, which result in fees and may result in chargebacks due to credit card and other buyer fraud.Issues of illegality and antitrust have been raised over this decision.Other such weakness in the feedback system include: people are reluctant to leave feedback first for fear that the other party may leave negative without caring, new accounts that leave negative feedback and then create more new feedback, and people not leaving honest feedback for fear of negative retalitory feedback (including negative in retaliation for neutral).Paypal accounts that are frozen without it being the seller's fault (sometimes frozen without reason) have resulted in ebay accounts being banned.This singularly requires that online payments through ebay must use ebay's system.com as an alternative, but bidpay has already gone out of business