Overpass is not just "mining OSM data", overpass is quite an extremely efficient language and system plugged to a GIS database, that can be used to find a lot of things.

Those things could be used by robbers or any other kind of people who browse photos online.

Now, of course it depends on people handling their data straight, but since the internet is mostly used as a place where people share anything to the public, I still believe it's a bad combination of problems waiting to happen.