yep. I know at least one old friend of mine that got rid of hers specifically to keep people from finding her. She'd had a very bad highschool experience.

I've had a few friend requests from people I wasnt really friends with, but added them more to see how we all turned out. One guy who was always an asshole is now a elementary school teacher, from what I heard via another classmate. Some people finally mellow out, thus, I don't just flat out turn down the requests.