Darknet markets almost universally advise against using BTC that hasn't been explicitly anonymized, a process that costs money and effort and requires knowhow t

Darknet markets almost universally advise against using BTC that hasn't been explicitly anonymized, a process that costs money and effort and requires knowhow to do properly. Mixers, tunneling through a private cryptocurrency, or other methods almost all involve transaction fees. Few people are seriously engaging in trading contraband without this overhead.