You are right. When I first joined HN reading comments was my favourite part. I would be in awe of all these intelligent and insightful people, I would often skip entire articles and read the comments first. Things have really taken a major turn for worse in the last 6-8 months. Almost every single thing posted gets picked apart to bits and not in a good way. It has gotten so bad that I have actively started avoiding the comment section. My rule of thumb these days is only read comments in threads below 20 posts as these low comment threads are the ones with the highest chance of reading something interesting rather than just typical tired criticism of the of the article. I don't even consider threads with over 50 comments as these are almost always a complete cesspool of negatively.