Of course, the bad guys use bitcoin and who else uses bitcoin?
Read below from John Lanchester
After the Silk Road shut down
the FBI became one of the world’s larger owners of bitcoin, because it seized the site’s considerable assets: 144,000 bitcoin, worth £43.9 million at today’s prices. It was a point of interest what it would do with them, and a point of danger, too, since it seemed possible that once the new currency had the attention of the authorities, they might conclude that this extra-governmental, anonymous, untraceable money was, in and of its own nature, illegal. Instead, what the FBI did, after thinking for a bit, was what it does to other confiscated assets: auction them off. The implicit point was not missed: the Feds say bitcoin is legal. It follows that bitcoin has legitimate uses. That was a strong message. Bitcoin emerged from Silk Road in better shape than ever.