It looks very interesting to me to compare this result with the number of bitcoins that Mt.Gox claims to have lost because of malleability.
Although not every MtGox addresses are known, we can still more or less calculate the total amount lost to
all wallets bugged by transaction malleability (not
any wallet except MtGox's has been reported bugged by MT). At least we can calculate the upper-limit (i.e. repeated transaction look-alike MT-affected are counted in). and if the upper limit is less than 770k, it will be a news headline. (of course if that number is more than 770k it doesn't proove leaked 'draft' is honest.) Who is in the mood of doing the math?