It's fairly easy to deactivate or delete your account. Account > Account Settings > Deactivate Account. To preempt any objection that you want to be able to use Facebook, you just _also_ don't want them to analyze your status updates: that's nice, but they are not willing to offer you service on those terms. I guess it's fine to complain about it in hopes that something will change, but the winds are not blowing in that direction, Mr. Quixote.