Yes, I read that sentence before writing and your argument about the website expenses can be valid. It does not change my main point: when it is about health one should search for information from qualified professionals. For example:
A personal experience can be illuminating sometimes but it cannot be considered an alternative approach. For this reason, I do not consider it a good source. Just my opinion.
You could be right, but on the other hand many qualified professionals prescribe Zoloft or Xanax and be done with it. A personal account (which in fact many of the comments here on HN are) can be very helpful, if only as a reference when talking to real professionals.
> the purchase of the book is totally optional, so please do take the time to look around my site
Also, the book is only 13 pounds, so I don't they they are making a lot of money out of it. Perhaps they use the money to keep the website running?