I’m even more puzzled by the rates out of trade: did MtGox allowed traders to agree one-on-one on their own rates? That would allow a lot more laundering than any theft.
Missing too are relative size of the traders.
This is actually rather scary. Enough people have logged data that these can be dereferenced despite the feeble attempt at depersonalization, but I guess the names will come out in the legal proceedings anyway, depending on jurisdiction.
Then we'll have Newsweek writers at our houses asking how we feel about "losing millions" when our cost basis was really around $10. :-)
To head that off: "Umm, now I don't have to worry about how to declare this on my taxes? 'Miscellaneous Income' was making me nervous."
I think you're maybe looking for bowlderization or anonymization or something similar?
Anonymize is probably fine, but I want "reversible anonymization". :)
Red -> Selling bitcoin for USD
Blue -> Selling bitcoin for any non-USD currency