Naughty bitcoin, how dare it get used by bad people. It's a little known fact that bad people have an allergic reaction to using dollars, or indeed any other form of central bank currency. That's why no bad person EVER has done any bad things with banknotes. Nope. Not once. Because banknotes are soooo good, they scream out when handled by a bad person, thus alerting everyone to their improper use.

Bitcoin on the other hand is a cad, and a bounder, and must be put in a box until it ends up in some kind of quantum thought experiment, and starts sneezing from close proximity to the cat....Bitcoin you digital bastard!!!