I would extend that to all topics, even the technical ones. The upside to HN is that it attracts a lot of smart, technically knowledgeable people. That's the downside, too. Everyone likes to think Dunning-Kruger is an indictment of over-confident stupid people, but I think it serves us better as a warning to people who think themselves smarter than average. Heck, especially when they are smarter than average.