I deleted my Facebook account 10 years ago and I definitely regret it. I got another account later and I tried to get my original back, but it wasn't possible. Unfortunately it was a time right after I transferred colleges and moved away from my home town, so I lost a lot of my old connections. You could say they must not have been that important, but I enjoy keeping up with people. It's weird to send out a friend request now to someone I don't know very well any more or haven't talked to in 10 years, assuming I remember their name. Facebook has certainly gone downhill but I guess I'd rather not use it for a while than totally delete my account at this point.