There's a big difference:
When you meet an idiot who wears those cameras and points them at you, you have a punchable face right in front of you.
I'm not saying you should inflict violence on Facebook-loving dorks, I'm saying I predict random acts of violence in ordinary settings like bars, restaurants and other random venues from otherwise peaceful people who feel violated by those in-your-face - and on their faces - spyware doodads.