Don't buy illegal things over internet. Sooner or later you may end up at jail.
I agree that it's too dangerous to do illegal things through the Internet, but you can also be easily caught outside
it is equally dangerous to do illegal things on the web or in real life
internet gives a false sense of anonymity , when in reality your identity is traceable if really needed
but you won't necessarily end up in jail , the agencies who have the ability and resources to trace the illegal deals
won't bother with petty crimes , same as in the outside world - the rules of the game are the same