I know that controlled substance e-commerce was a key market for bitcoin ~10 years ago, but given crypto's current volatility, transaction fees, settlement times, and vulnerability to forensic accounting, is bitcoin still a viable way to buy drugs?
Yes because of "trustless" markets and multisig, but Monero has a sizable portion of that market share as well, I've heard.
Agreed. That falls under the darknet commerce umbrella I alluded to in my OP.