I believe there's some misunderstanding. I meant letting them know who you are, but giving incorrect information about your beliefs and thoughts. I still believe that giving incorrect information can be very effective.

Even if Google/NSA knows your name, they can only see the online activity that you choose to do. You can intentionally choose to give them very incorrect online activity.

For example, intentionally visit websites (manually or automated) that you don't believe it. This will trip up their algorithm. How are they supposed to know what you actually think or believe in?