Facebook is an addiction that's not adding much value to my life... only cheapening it. I can tell it's not very valuable because of all the stimulation of different funny memes, profound quotes, political statements, etc etc, I don't remember much that sticks out. It just feels so addictive so scroll and scroll, feeling like you need to "catch up" on the rest of the world, feeling a false sense of accomplishment by doing so.
It's hard to quit Facebook. There's family, friends, networking opportunities... but then it's such a huge waste of time that takes a toll on your self-esteem and general happiness.
I think the best thing for me to do would be to only use it when I absolutely HAVE to communicate something that I couldn't communicate any other way, like promoting art or reaching out to a friend who's far away.
Whether it's Facebook, YouTube, Twitter, especially Buzzfeed, all these websites seem to be designed to distract. There's always something else on the screen screaming for your attention, so that you always forget what you were even looking for in the first place. Forums like this seem to be less distracting. I miss forums.