I have no problem with people who hate Facebook and refuse to use it. What bothers me, are these people who periodically throw a big tantrum and say they're closing their Facebook account forever. It's the modern adult equivalent of running away from home. Everyone knows you're just doing it for attention, and you'll be back in a couple of days. I have certain of my friends and relatives who are continually doing this.
But yeah, I'd sign up for Arsebook.