Money is the way we keep score in this game, and the only real reason for the game. While money may not be the only measure of a good trader, it is impossible for a trader to make the claim he is good without having achieved the monetary trading results to back it up.
He's as much a trader as anyone else on here, he has just happened to write a book, and is hopes to make some money off of it. Nothing wrong with it. This is America......the land of opportunity. If you don't think you'll gain anything of value, then by all means, don't buy the book. I think that any aspiring trader can probably glean something of value by learning his story.
When I started trading, what was of incredible value to me, was the two guys who stood up for 15 minutes and told their story about how they make money trading, real world, real dollars, and their approach to the market. It was incredibly valuable, and did two important things. Demonstrated that money could be made, and provided an overview of their trading approach which provided the framework with which to research and construct my own approach to trading the markets.