The fact that my Stop Order was punted from $600.11 when there were dozens and actually hundreds of BTC in the ask wall between my Stop Order and the $608 price tag I got hit with in the end, right at the very peak of the grouped together 319 trade, is very very suspicious. The explanation is that apparently there were Ask walls getting pulled and market orders all going in right in the split second between my Stop (and no doubt countless other trader's Stops) getting triggered and my Stop being executed. This might all well be the case, but I would suggest that it is the exchange itself who is responsible for such 'split second' interventions. It isn't like this is the first time this happened on BFX. They argue that they have better things to do than steal sweets from kiddies, but I would dispute that when they are stealing lots of sweets from dozens of kiddies on a daily basis, that they increase their profit margins several fold. They have the market information and front running capabilities to wring a bit more USD out of it's customers, and from I have seen, that is exactly what they do.

I can't prove it, but I know that this exchange is shady as fuck.