He has had many successes. He essentially was the first to solve the commercial email spam problem: http://paulgraham.com/spam.html http://paulgraham.com/spam

He has had many successes. He essentially was the first to solve the commercial email spam problem: http://paulgraham.com/spam.html http://paulgraham.com/spam.html If you remember email before and after those techniques were implemented into mail clients of the time, it was night and day.