Well, one could get unsuspecting users to take pictures around all kinds of facilities and such. Consider too that if you have multiple databases of this sort, you can draw a lot of inferences based on who is usually around whom.

You still haven’t provided a reason why this is a bad thing. Ok, so there are unsuspecting users taking photos of the local YMCA facilities. What you’re talking about is similar to the social graph but on a much smaller scale. The only reasonable use is for advertising. The world’s not going to end.

Foreign intelligence services are likely just as interested in hiring FAANG employees as they are soldiers. A compromised Googler could get them lots of access.