I agree with you. I took a look at FaceBook when it first became a big thing, out of curiosity, but being a lifelong loner, I realized I had no need for a social network site, so I never signed up, and I don't feel that I've missed anything. I do hang out here at WP sometimes, but this site is very relevant to me because of my Asperger's, so it's more of a help center than a social site for me. The social site aspect comes in as a side benefit. However, I control how often I drop in here, and how long I stay on, and whether or not I post, or respond post, or email anyone here. This keeps the social side of it under my control, and at a level I can handle. From my reading over the years, people tend to let FaceBook and other social sites take control of their lives, instead of themselves being in control. I am constantly amused and shocked by the stupid stuff people put on their FaceBook accounts, out there for the rest of the world to see. No thanks, that's not for me!
Glad you are getting the monkey off your back! And remember, you can still keep in touch with your real friends by phone and email.
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau