I used to have an account. But then I realized that what was going on around me was pretty much a mixture of voyeurism and narcissism. People posting stuff about "My new pair of jeans", "my new belt", "my abs", "my biceps" or sitting there and groking people's personal details. I deleted my account. Later at a point, I rejoined because there was someone I wanted to keep in touch and Facebook was the only option due to a number of reasons. But I had already become a Facebook sceptic, and again deleted it for good about one year ago.