What you are scared of is some hypothetical situation that there so-far is no evidence it could or would happen in the future? When you do web searches, your personal emails start popping up within the results? That actually happens, or is going to happen? When?
>What you are scared of is some hypothetical situation that there so-far is no evidence it could happen
Ecio78 outlined a scenario in which relevance targeting "outed" him in a way he didn't want. I'm analogizing Facebook relevance ads with Gmail and search ads.
I didn't think Ecio78 was saying that emails are going to pop up explictly, only that Google would present information that is relevant to him in a situation where he didn't want that relevant information.