since long time ago. They should pay some cost to move the fund, you know, illegal fund. It's troublesome as the anti-money-laundry is the world wide rules for the traditional bank.
Now bitcoin solve their trouble. Sell drugs on silk road or its local version, and combined with the service of bit-pay, the money is already in the account of mtgox, and no need to worry the local police go to your door.
So, just do it, a copied and opensource SR with a function that can easily implement different languages.