I think the ambiguity is leading to a better discussion. Many commenters are struggling mightily with the urge to dismiss the author as a lazy moral failure, which would allow them to ignore his arguments as originating from an unreliable source. Since there's not enough information to do that, we're getting a certain amount of discussion of the actual ideas.
Hmm, possibly, but from my point of view the fact that he might not be speaking from experience, or at the very least from the experience of someone he has been close to, makes me disinclined to put a lot of weight on his opinions.
