Looking through his comments, I think he's young and, as tends to go with youth, frustrated. This comment elsewhere in thread suggests he may be coming around: https://news.ycombinator.com/item?id=40895503
I am not that young. If you go back far enough in the comments you will see that I completed my physics degree 15 years ago. I studied quite a bit of biology and I personally know multiple doctors. I am more bored than frustrated.
i truly hope you never have to experience cancer treatments for a loved one where the treatments end up not working in the end. it is humbling and eye opening.