No, he shouldn't. There's no point in giving any value to anything argued here in news.ycombinator.com (a computer programming, technology entrepreneur forum) related to a genomics/biology subject. People here only argue to argue, and the level of discourse in these subjects are terrible, in both "sides" (the fact that people take sides is even a demonstration of how terrible the discourse is).
What has to be done with this scientific paper, from a scientific journal is to read it, maybe go to scholar.google.com to look for its references or other sibling papers. And maybe go to science.reddit.com askscientists.reddit.com or any other internet forum were people educated in the subject interact, to get some good quality dialogue.
