> All cameras (glasses, phones, etc.) then blur your face in recordings.

Rendering security cameras useless for identifying any criminals?

Maybe some of these commenters aren’t old enough to remember when fighting for your right to take photographs and videos in public places was one of the frequent topics in online places like Slashdot and BoingBoing. There have been waves of attempts to restrict freedoms to take photos in many countries. When they pass there’s a significant loss of personal rights and freedoms.

> Similarly, a venue could request a do-not-film-this-venue setting and make sure no photos are taken at a party.

Do you really want this? An off-button for all cameras nearby? Please purchase your official photographs from the gift shop or from the $5 Photo Booth.

This would be a dream for bad people who don’t want to be recorded or photographed doing something, like a bad police officer. Just keep a device around that broadcasts the “do not record at this venue” signal and you can shut down recordings all around.