Please remember this, SR market site and the forums are anonymous if accessed correctly, buying illegal substances can be done anonymously to safe drops, in this scenario where are the weak links? simple answer is procuring the crypto currency. If you can be linked to the purchase of btc you are leaving yourself open to potentially unwanted attention and it is completely avoidable so I cannot understand why anyone would want to take pointless risks. LE are putting the squeeze on btc, it is the weakest point in the chain so if I were you I would buy my coins anonymously and sever any potential link between my SR activity and my IRL identity, makes no sense to take avoidable risks imho.