I will never recommend this website to any of my friend. Its totally wastage of time. It is addictive and people spend a lot of time of their day on facebook. There are a lot of pages on facebook who just post some shitty and lame posts about senseless stuff.
Political parties have their IT cells on facebook who passes wrong information on it and people according to the popularity of posts judged the post to be correct, so for spreading fake information political parties uses facebook.
Facebook is literally killing the time we spend to have a conversation with our family members. So, I stopped using facebook for such things.
Now about the information people shares on facebook: almost 90% of them are fake, some of them like type amen posts.
People have their fake accounts on facebook, they use it to deceive people. According to facebook themselve there are almost 8.7% fake accouts are there that is 87.7million facebook accounts.
There is nothing to learn from facebook.