It's not a bug I'm concerned about, it's this part of the privacy policy "if you permit the Uber app to access location services through the permission system used by your mobile operating system (“platform”), we may also collect the precise location of your device when the app is running in the foreground or background"

What I'm getting at is that it's pretty straightforward and easy for Uber to maintain a database of every user's locations at all times, even if they aren't active users. This kind of data is valuable. Assuming Uber isn't already doing it, all it takes is one mid-level product manager to initiate a small project to kickstart it.