&gt; <i>HackerNews should promote culture of science and critical thinking and shouldn&#x27;t be accepting of the fad diets like lchf, paleo, keto and other scaremongering bs.</i><p>No, Hacker News should promote good conversation: civil discourse that respects people&#x27;s right to differing views. This is a pluralistic place where everyone has a right to be wrong. Strident denunciations—even (or rather especially) in the name of correct scientific positions—are corrosive of the social contract here and should be eschewed regardless of how right you are, or believe you are.<p>Otherwise the endgame is a few absolutists yelling at each other, and everyone else leaving.