I see no reason for Mark to make this up. No sir, no reason at all. It's not like in the last two weeks mtgox made more money than in it's entire history. It's not like rapid appreciation and volatility is making him richer than Satoshi Nakamoto. Cmmon guys, is there was really a bubble that burst, would he be lying us ?
Let's not forget about the people trapped in MtGox waiting to be verified. Another one of mark's bedtime stories. People, you are grasping at straws and you are sheep. Regardless of this here dead cat and "return to normal", the bubble is done and price will succumb to less than 50$ in less then 3 months.
Gox made more during the high volume days than during the low volume days, the last week when the crash was in full force should be their highest grossing week ever, whether you calculate by total bitcoin/fiat volume. So using your own logic, Gox should try to create as many crashes as possible, rather than pleading people to calm down.
Besides, even if Gox's plan were to accumulate as many bitcoins as possible, and betting on its rise in exchange rate, the only place to cash out such a huge amount of bitcoins would be their own exchange. So if I were Mark, the best strategy seems to be just charging fees in dollars so they make money regardless of the price movement.
Not to say that you have no fact at all to back up your accusation.
Please educate yourself before you talk.