i think it's pretty obvious that this was a bear raid to trigger stops in a thin market. Someone smashed it down, triggering stop-losses and picked up a bunch of cheap coins. Yes, some standing buy orders will have been filled, and a few lucky people got some cheap coins too, but overall mostly people got raped and one entity made a huge profit.
All happened too quickly for any new orders to be placed.
Was it done with inside knowledge of the order book? Quite possiblly, but we will never know. Could easily have been the exchange itself.
I don't buy any 'fat-finger' theories. Rape and pillage much more likely IMO - this is Bitcoin ...
Just my 2c
Agree, I would also assume that it made BTCe itself probably. But you cannot have complicated triggers on their web page. You can done complicated trigger if you trade through API on your platform, but then I thought exchange,( nobody except the owner of platform) could see where did you put your trigger, and BTCe doesnot allow you to trade on leverage (except their tricky MT4, where I trade and see no volume). So how could BTCe know where people put their triggers?