I’m not a privacy freak but the scary part about all this is she really does believe what she is saying which is amazing to me.
When 90% of users don’t know the 180 day cookie tracking even exists, it’s impossible for them to “easily opt out”. In regard to tracking computers vs. users the only capability they have right now is tracking the user’s computer, not the user themselves. Their taking it as far as they can, they are not opting to voluntarily hold back there.
If your interests lie in getting sites to rank well, and more importantly convert, then I agree; understanding the dynamics of this as soon as possible is crucial because no matter what you think of it, its not going away. In fact what I get from reading her comments is their stated goal is to increase their use of this type of information in determining what they return to their users.