just a hunch, but you will probably get pinged to this thread a dozen times at least.
I used FB and thought what a great idea, I got in touch with a lot of old pals I served with and some who are still serving , however I had friend requests from their wives etc, said yes to them and then I got so fed up of reading what someone is thinking to eat for dinner, of if they should wash their car, or where they are going for their vacation that I rarely even use it now.
I’m not on Facebook, so I don’t have this problem.
I’ve unfriended a BUNCH of people for #1.

Let me add:
#8 The person who is on Facebook ALL DAY LONG. Your news feed is cluttered with random comments, links, photos, YouTube videos, etc., and you suddenly realize that roughly 50% of it was posted by ONE PERSON, who seems to have nothing better to do with their life than to constantly post on Facebook.
The worst ones are those who spew their liberal opinions, assuming that, of course, everyone will agree with them. It never seems to occur to them that they might offend somebody, or that some people log on to Facebook for fun and relaxation, not to hear bigoted political rants. I had one Facebook “friend” who did that, so I un-friended her. But she and I still have Facebook friends in common, so I am still subjected to her “Evil Republicans!!” rants on other people’s threads.
It really is true what they say. Liberalism is a mental disorder.
I joined Facebook to look up old acquaintances I hadn’t seen in years. I’m glad I did about half the time and sorry the other half.
I agrees with all of it! I do go to FB and have connected with much of my far flung family and I also play games.I do not share personal details at all and do not allow my comments made on other’s pages to be read by all.No one has access to my page unless they are a friend.I hate being added to groups!

I’m glad there’s not a “Posting Articles About What the Left is Up To” because I would be the #1 offender.
The ones that weird me out are the people (some of them co-workers) who complain about their job.
Not once in a while, like once a week.