There is so much written on exchangers being harassed and jailed and even killed you could fill an entire library.
I feel like we've gotten off topic. I seem to recall you supporting a ban of illegal trades in this forum. This doesn't make sense given that you've just stated exchanging fiat for non-fiat is enough to bring down the wrath of authorities. Bitcoin is inherently incompatible with statist central planning and control over the monetary system. Do you really think disallowing discussion and trading of illegal goods on this forum is going to keep the heat off?
Reputation to the public and reputation to authorities can be two entirely different things.