You're not really mad at them. You're mad at yourself. Anyone who bothered to do a bit of research and learn a little about their potential to suffer exactly these sorts of growing pains could have seen this coming five miles away. It wasn't like their problems just magically popped up suddenly without any indications whatsoever. Their failures here will serve to strengthen the bitcoin market as a whole in the long run.
Bashing Mt.Gox for the failure of the speculators to realize the potential of a relatively small exchange finding itself thrust into a rapidly growing market and being too unprepared, too incapable, or just too stupid to handle it is just crazy.
Mt Gox has been making money in transaction fees for literally years. Their website says they have handled 80% of all btc transactions since at least 2011. They have had YEARS to get their servers upgraded. They chose to do the 12 hour job of upgrading them in the middle of a panic??? If they had researched what bitcoin was intended to become, maybe read their own statements about their belief it would become a relevant currency GLOBALLY, and paid attention to their own subscriber growth trending data, they probably would have expected the volume of transactions and users to explode any time starting back in 2011, citing previous outages and volume related failures in 2010, 2011, and 2012. CNBC has articles dating back to 2010 citing trader interest in bitcoin, and boom/bust cycles amplified by exchange-failure fueled panics. Mt Gox has experienced "growing pains" EVERY single time volume has increased over the years. I only loosely follow bitcoin and I am aware of all this from snippets in the financial news! I rant bc I see the day coming when Mt Gox is bought by some filthy bank and we're right back where we started.