[pptr]

The incognito icon seems like a great analogy to me.

A person that hides the face with glasses and hat can still be tracked via CCTV, etc., but the data can't easily be associated to the public persona.

[bee_rider]

No, it doesn’t fit anybody’s real life intuition, because there isn’t an industry of comparing notes about the people we see (with or without disguises). If the analogy requires us to imagine a pervasive surveillance system that tracks you from the moment you leave your door, it isn’t in the intuitive experience of normal people.