"I don’t mean to be abrupt, but I think it’s not inappropriate in this instance to be so. I dislike Facebook. I find it puerile, self-centered, and intellectually, emotionally, sociologically, philosophically, and psychologically masturbatory.

I think people who are intelligent, educated, and experienced and who have self-confidence and a true sense of themselves do not waste their time on Facebook. In other words, it is a place for truly needy individuals who have nothing better in their lives than to recount and present their mundane lives to an audience who, frankly, don’t give a damn.

Adults simply don’t log on to Facebook. I don’t contend it’s solely for losers, but I think it’s populated to a great extent by able people who lack the self-confidence to do what they want to do without the approval of others. True pioneers in any field don’t need anyone’s support. They know that their goals are worthwhile and they don’t need supporters to confirm their knowledge. Grow up. Facebook is for kids."

source:

https://www.quora.com/If-I-friend-someone-on-Facebook-and-they-dont-accept-but-somehow-Im-following-them-and-can-see-their-wall-how-does-this-work