"The major cause of complaints is C++ undoubted success. As someone remarked: There are only two kinds of programming languages: those people always bitch about and those nobody uses."
That's quite nonsense. The problems with MtGox are that they have threatened Bitcoin quite factually twice already. When they're not busy threatening outright extinction they're on a program of constant lies and a slow leeching of the community. In general MtGox has been a net negative for Bitcoin, in the sense that if they never existed we'd have been better off today. This is not even true of all scams, so in a sense they're worse than a scam.