I do not have high confidence in any bitcoin exchanges, they all seem to be held together with rubber and glue. This one could well be different...<p>.. However, the ability to roll out even a simple change like this in such a short time, suggests that there is no testing, code review, or anything...<p>So praise them for being responsive, but I'd shun them for proving to be unsafe... which ultimately is what matters more.
Just trying to keep the simple, simple... It's hard.<p>I mean as a programmer, the challenge is to keep making the simple changes easy to do. Often change management and testing start to get in the way.