I agree that there are plenty of incorrect comments, but that's life everywhere... You can't enforce truth for every comment, and especially not in a place with such general discussion.
Also, I've been reading HN for around a decade now, and I actually disagree that it's gotten worse. I like HN of 2020 too!
Are there any other similar sites that are better? (Asking seriously, I'd like to know!)
So if I have a choice to make, I prefer to push them towards a source where people who write nonsense are more likely to be corrected than a place where tribalism or conformism is so high that another opinion does not have a chance.
All of this is the introduction to discussions between us afterwards (where they get one more biased opinion - mine), but I prefer the topics they would get from HN than Instagram.
As an example, we spent a good amont of time yesterday when he brought up the case of a child (11 yo) that paid for the artwork of his mother. It was a very interesting exchange of opinions about what parents and children are entitled to vs responsibilities vs casual money management etc.
I've absorbed a lot of good information from HN comments, but I hate to say that the signal to noise ratio is not particularly high in 2020. Reading the comment section without a significant degree of skepticism could result in a lot of misinformation.
I didn't fully understand how off the mark the HN comment section could be until reading the comments for topics and companies I was closely familiar with. There are a lot of very confident posts here from people who don't really understand what they're talking about, mixed in with some great posts from people who know exactly what they're talking about. Take everything with a grain of salt.