Today i have an oder bid at 364.04. It make vol at possion is 10 BTC oder 364.04. 30 seconds after price 364.04 is matched, i saw it on bicoinwisdom. Volume matched is 10 BTC and on order table on 796.com is cleared my order. But surprisingly is 5 seconds, my oder is come back on bid order.
I think the boss of exchange is control to insert some oder of him.