Also, it is jumping the gun to classify a 'crypto math puzzle' as a financial instrument and to suggest regulatory oversight.
It is naive to think governments will miss the obvious -- that bitcoins are a cross-border currency/commodity of considerable value.
people saying "doing math and writing code isn't illegal, man!" are delusional.
Chemistry and gardening aren't illegal either, and yet thousands of meth labs and grow houses are busted every year. Bitcoin *can* be made illegal and governmentS can stop the flow of fiat currency.
The US already did this with online gambling.
Bitcoin is not invincible... yet.