This poem sums up the reason I rarely use Facebook. I don't know if this applies to you, but it very much applies to me.
Why I Don't Like Facebook, a short poem by UglyTurnip
Sometimes I scroll through my news feed
Only to see a status about weed.
I facepalm myself multiple times
When I see all my friends whine.
I frown, disturbed by someone I don't know
Why I added this stranger is a source of woe.
Some people on the site cannot spell.
The Grammer Nazi in me, I must quell.
So people of Facebook, can't you see
Why I have lost faith in humanity?