I go a bit further...
Your mind (and posts) been hijacked by obnoxious agendas? No worries. I have this criteria.
If you are in some circle I currently care about, I place you on unfollow. No obnoxious post unless I actually care enough to go to your page. I can still get in touch with you via FB IM. But, I don't have to listen to you puke sewage even though that may be your trip right now.
Distant relatives that are active are perpetually on this list. I am not really "family" and care not about Oklahoma politics or the latest Trump worship meme. But, fuck, I don't have your phone number and a lot of other folks do not either. Someone dies, FB may be the only way to contact you. But "FB friends" it will be unless you invade my space with assholishness.
Coworkers, classmates, etc.... if you are cool and do not post a lot/ obnoxiously I do not care. Otherwise, we don't work together anymore and you showed no interest in my life or I don't think you are cool.... gone
Kind of shallow, but if you do not, you are not doing social media right. Unless you are some public deal and marketing.
I mean, its a tech leap. We used to have to keep on notebook paper long distance phones to talk to distant relatives long ago that was so expensive it was only on special occasions we talked to them.
Want to get a high school reunion (groan) together? Used to damn near take a PI to do. Now, search FB.
Want to hit on the cute girl the friend you worked with 2 years ago knew? Do EEEETT... SHE'S ONNNN!
But, like anything, don't ignore the tool for the a bunch of folks that misuse the tool. Unfollow those idiots or unfriend them if they are irrelavent and you see no point in IMing them anytime in the medium future.