HN is my favourite site by far (I lost my login details to my old acc but have been here for quite a few years), but, HN users tend to be very vocal on areas they don't really "know". My wife is an MRI researcher and I share most threads on that topic, normally saying some comment seems really cool, where she quickly shoots it down as flawed. If it isn't directly related to programming I have a large salt shaker nearby :)
To be fair I know I do the same no matter how much I try not to!
Oh it wasn't a comment on HN users but people in general.
So often someone will spout off on a topic as though they know a great deal but when I start actually trying to have discourse on it I discover they actually know very little.
Dunning-Krueger type thi g I'm sure, but it's just so common as to be mentionable.
Frankly I'm a little saddened so few who consider themselves "in the know" about these things didn't at least know of the doc...