This is probably one of the hardest things to estimate. Let's say we're going by the number of people who bought a substance on a DNM in the past year. My best guess is 20,000 in the U.S., 10,000 in Europe, and 5,000 elsewhere. What do you think? Way more? Way less?
Overall I think there are few users, because despite all of the articles, almost no one knows about darket markets. And Tor is growing in popularity, but we're still at a point where almost no one knows anything about it either.
The reason I'm guessing there are fewer users in all of Europe is because of much more lax penalties for posessing or buying and selling cannabis, and even other drugs. Europe also seems to be where many drugs on DNMs actually originate, so fewer people have to deal with poor quality when buying off the streets than people in the US.
As for the rest of the world, I base that off of the fact that the vast majority of Tor users are still westerners.
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