Comment 1) O RLY? 2) what crimes? (Score 1) 1
I'm not surprised that people use crypto-currencies for criminal acts, just as I'm not surprised they use US Federal Reserve Notes for the same.
As for profiting exhorbitantly by inflating the exchange rate, that sounds like the free market in action to me. Back in the day when crossing the border meant changing out your paper money, you saw the same thing with money-changers near border crossings - customers were willing to pay a less favorable rate for the convenience of not having to go to a bank.