This guy knew how to scale! Started/bought a domain registrar to generate the so many spammy sites needed to sell all those drugs.
Another unrelated point. He found himself in a career crisis in 2002, and also discovered he was adopted, which according to this series (and some Australian media articles) disturbed him. And there are two distinct career paths before and after it.
Although, I am filled with disgust at his actions, esp. he got people killed. But it also stuns me the amount of "progress" he did in a span of less than a decade from 2002 (assuming by 2011 he was done with it, sort of).