There's a hard limit to what I as a user can reliably express in terms of explicit rules. I have a cousin I was pretty close to growing up. She mostly uses Facebook to post anti-vaccine nonsense and occasional bits of thinly-veiled pro-Trump propaganda and BS "stories" from the alt-right. I "unfollowed" her a long time ago, but it would have been nice to see all the updates she posted when her dad had a stroke.

I need an algorithm for that. There's no good way for me to say, "I don't want to see all the stupid shit she posts, but please show me important stuff" because I lack the ability to rigorously define "important stuff". And it's unreasonable to treat her unwillingness to personally text those updates to every single person she knows.