There are risks, and it's only a matter of time before someone serves jailtime for a bitcoin related crime.
There's already people serving time for USD-related crimes.
I have two questions:
1) Since BTC is decentralized and apparently subject to no law or taxation, how do you propose bringing a bitcoin thief to "justice" and under whose law?
2) If bitcoin miners and traders are not paying any taxes on their bitcoin related activity, why are they entitled to the protection of whatever society they're evading taxation from?
How i'd handle it:
1 - Here in the UK i'd use the computer misuse act or fraud charges
2 - Simple answer - tax evasion is illegal too, for myself I do file my tax returns and pay the amount owed under british law, part of which includes funding for the police - so I have absolutely no ethical qualms whatsoever about using the services of the police - whether or not those services are any good is a different question..........