I'm not sure there's a ton of people who made money during the bust, especially those that owned mutual funds like what the author claimed. There certainly were people that made money but they are few and far between. One of my coworkers at my current company made $500k shorting 3COM and YHOO.
The point is that the author didn't even show a year of flat stock earnings... every year they went up! During 2 crashes! And he never got burnt enough to start thinking that stock investing was dangerous or foolhardy when he had no steady job. It just seems fishy.