All I know is that Facebook was started as a way of enforcing the picking-order of the local school. Ofcourse it grew, from the same reason kids still to this day gets bullied in school. It's just got legalized by the grownup community. And then we wonder why kids are getting burned out before they even start working?
As a bullied kid I already saw what facebook was from the start so I never created an account and cringe every time I see it mentioned on the news.