I am not (yet) at that point, nevertheless I understand your concerns. The most problematic thing to those scared like us is in my option the emerge of sentence/word structure analyses that will make it possible to draw our online identities together even when different ips, email, user, etc are used. I would love to see something like http://www.linguee.com/ that would help to "neutralize" language in such a way, that it seeks/suggests replacements for unique elements of phrases/words/etc.