There's so much unwarranted Mt.Gox-hate from folks who are, generally speaking, completely responsible for their market position in the first place.

Bitcoin is new, so major exchanges don't take it seriously. The only places that did were tiny folks that used to trade a virtual currency for cards from a nerd-game. The market grew faster than they were ready; it just happened that Mt.Gox actually tried to keep up with it--and did all right for some time.

These issues with Mt.Gox are growing pains. They're to be expected; the fact that so many folks seem to expect them to be able to handle this massive influx of interest without a hitch is pretty silly. There will be hiccups.

Where they go from here will depend entirely on their ability to cope with this most recent bout of malarkey. Either they'll lose market share and others will gain it... or they'll solidify their position even more.