I'll defend anyone against rumors, amateurish "leaked" documents, and unconfirmed allegations.
It's to everyone's benefit in this community that we have accurate, solid information and not jump to conclusions. Circumstantial evidence is being used to declare MtGox insolvency as a foregone conclusion, rather than just a fairly high likelihood. This is wrong. It is poor reckoning of evidence, even if they do turn out to be insolvent in the end.
For starters if you do the math using the number of Bitcoin's MtGox has reported that went missing if happen since 2011 MtGox would have lost 409 Bitcon's a day; granted Bitcoin's didn't have the same value back then 409 still have alerted accounting (if they were doing any) that money was missing at the end of the month. But lets say the lost the coins later on, losing 750k of coins over 2 to 3 years is a lot that any accountant would see it.
So yes it's speculated that Mark likely cooked MtGox books and embezzled the money. Filing for bankruptcy costs money, for an individual it costs about $30k here in Canada, for a company it costs a lot more. Plus all the extra stuff we are seeing not that MtGox has filed in court is costing them big time. So where are they getting the money? Is Mark using the embezzled money to pay for it? These are serious questions people need ask!