Non-social user here (no fb, twitter, other feeds except hn and few forums). I cannot remember why exactly rss stopped fitting my needs. I was using a standalone reader before iphone was a thing, then google reader, and then began to simply check my 3-5 sites at non-busy times. I think that for HN I miss at least 1/2 of all topics since it is “a fast board”, among others. I don’t really want to be overwhelmed by all…
I used RSS to follow some of very niche amateur literary/diary/essays blogs in my native tongue Hindi. Some stopped, some moved to social media, and some “upgraded” to English. That was about it.