Hah, even without the hacking angle, having URLs to promote shit popup when you point your camera somewhere could be the next obnoxious advertising.

For a few years now phone cameras have been able to automatically detect QR codes, maybe their next feature will be an option to turn off "smart features"...

The alignment squares here are a pretty big giveaway, and it seems like it'd be really difficult to fix that without making them unscannable

Or making QR codes harder to read on certain cameras or lighting conditions by removing the error correction!