Thank you, Oddjob, for bringing this to the attention of everyone who didn't know their cell phone was constantly spying on them in yet one more ingenious way.
In my case, I intentionally have geotagging turned "on" since I use the geotags to position the pictures (for reconstruction of the scene, etc.). If someone on this site wants to go to all the trouble to search my uploaded pictures for things they would like to steal, download the picture, read the geotag, figure out where I live, drive all the way over here, wait until nobody is home and then burgle my house, then so be it. Just be alert for the alarm system, the cameras and the part-ocelot attack cat. They will walk past several laptops and a server farm that are far more valuable (not to mention as portable, less traceable and more easily pawned) than any of the guns I own.
The most valuable things I've got that have been photographed and posted on this site are some WWII-vintage Nambu rounds and some boxes of Korean War vintage .45 ACP cartridges. They're in my garage, in my reloading cabinet, second shelf from the bottom, on the left, in the red and buff colored boxes, respectively.