Ah, this site again. See https://news.ycombinator.com/item?id=5327200 for context.

The author's posts vary greatly in quality. Sometimes they're reasonable. Sometimes they're stuff like "antidepressants in tap water cause autism" (http://asserttrue.blogspot.com/2013/02/antidepressants-tap-w...) and "Do warnings on cigarette packs cause lung cancer?" (http://asserttrue.blogspot.com/2013/02/do-lung-cancer-warnin...). When an article makes it to the front page of HN, a domain expert usually comes along to tear it apart. See https://news.ycombinator.com/item?id=5140049 for a recent example.

Combined with the author's constant self-promotion (see https://news.ycombinator.com/submitted?id=techdog), I tend not to believe much written there. He's optimizing for page views, not scientific accuracy.