I keep mine for about the same reason. I really only see posts from things I've liked like the ACLU or The Onion and some anti AA groups I've joined.
I was trying to troll some conservative groups with misattributed Nazi quotes but Facebook started to show me posts from those groups after an algorithm tweak I guess so that got old. Slap the name Ronnie Reagan on a Himmler quote and you can get a lot of fake internet points
Facebook is that uncomfortable Thanksgiving dinner with your idiot uncle who believes in UFO's, vaccines cause cancer, and wants you to buy into his Multi-Level pyramid scam. Only instead of one day a year it is every day.