So basically what I read from this thread is that the fraudulently acquired bitcoins will go through a mixer or tumbler in order to cover the transaction tracks. The tumbler/mixer will take a small fee for this service. Then the perpetrators will be able to cash out in a number of different ways.
In this case how will the tumbler/mixer not be punished by authorities. Since because they take a cut of the illegally acquired funds they can now become an accessory to the misdeeds.
In this case how will the tumbler/mixer not be punished by authorities. Since because they take a cut of the illegally acquired funds they can now become an accessory to the misdeeds.