It's pretty safe for the buyer when they mined their own coins, or bought them from a friend who did, using cash irl.
The real concern IMHO is the seller's opsec. When you're sending them pgp-encrypted orders containing your shipping address for receiving contraband. Are they sticking your address in an addressbook? Keeping the messages around long-term? If they get busted, will law enforcement be able to access all their encrypted messages?
If the communications aren't immediately destroyed, it's very likely a busted dealer will cooperate with law enforcement for a reduced sentence, which will almost certainly include granting access to all their encrypted communications.
Fortunately for buyers, all legal systems don't enforce 0 tolerance policies for end users, at least regarding drug use. In western Europe, drug use is officially prosecuted but in reality it is rarely the case.
The real concern IMHO is the seller's opsec. When you're sending them pgp-encrypted orders containing your shipping address for receiving contraband. Are they sticking your address in an addressbook? Keeping the messages around long-term? If they get busted, will law enforcement be able to access all their encrypted messages?
If the communications aren't immediately destroyed, it's very likely a busted dealer will cooperate with law enforcement for a reduced sentence, which will almost certainly include granting access to all their encrypted communications.