I say this as a tech person married to a physician. Hacker News is a very bad place to discuss medicine because most of the readers and writers are tech people who just don't have exposure to medicine in depth.
It would be the same as someone from Hacker News going to read a medical forum where people are discussing AI, and the takes would feel similarly juvenile and uninformed, simply due to lack of exposure.
You are right, of course… but unfortunately I don't think it's worth arguing too much here.
He’s a deluded fool that keeps commenting on things way out of his expertise and for which he has zero experience of.
He’s polluting this damn place.
Many of his posts tend to be down voted for a reason.