Why do so few markets exist? : DarkNetMarkets | Torhoo darknet markets

At any one time there only seems to be a handful of markets running. I find this strange. You stand to make an insane amount of money from it, and maybe I overestimate the average persons skills, but a high enough percentage of people theoretically have the skills to make one that there should be way more at any one time. I certainly could make one, I wouldn't because I have a high risk tolerance, but I certainly have the technical skills to do it.

So I just don't understand why there aren't 100 shitty markets around at any one time, and 25 good ones. There's 8 billion people on the planet, I'd estimate at least a million of those have the skills to make a DNM. Of those even if 0.1% are willing to do it, that's 1000 potential markets that should have been made. So where are they all?