Coinbase has been totally unreliable. In last two weeks there was a number of days when their entire website went down. By extension I imagine GDAX can't be mu

Coinbase has been totally unreliable. In last two weeks there was a number of days when their entire website went down. By extension I imagine GDAX can't be much better. I would not leave a bunch of open orders involving a significant sum of money on an exchange like that; or pretty much any crypto exchange. I don't have enough trust in the quality of their software. Buy when you want to buy, sell when you want to sell. Don't speculatively trade in a thin market on a platform that makes you take all the risk. Writing production quality matching engine with tools to prevent such blood-bath is hard. At the very least GDAX could disallow orders that wipe the market and have some circuit-breakers. Also, in the name of transparency they could release a matching engine log (anonymized) so if the people want more answers they could find them there.