You’re ignoring the context of the comment to make a point. The comment was directed towards a specific type of discourse which was based on personal experiences. This is very different from a discourse where the opposing viewpoints arose from different information or interpretations of the same information, the information being grounded in a standard other than “my personal limited life”. No one is calling for unquestioning belief for ALL conversations, but a few of them don’t need to be cross examined.
If someone shares a story of a terrible interview experience on HN (which happens often) and I claim that bad interviews don’t exist because I’ve never experienced one, do we now expect people to litigate the fact that bad interviews do in fact exist? Or do we just downvote my terrible take and move on?