I've had FB since 2006 - back when it was college students only, so I've seen it go through tons of changes. Every new version always freaks me out for a little bit. I'm the most boring facebooker ever though - all of that time, and I've only ever had one status update.
I even have my wall deactivated right now...my friends can't even post on there. I don't like the new changes - but I'm not very concerned about them either, just because I rarely use it! It'd be pretty hard for anyone to learn anything about me via Facebook.