You have mis-described the status quo. Socially, a pub is not at all the same as the town square. I don't know the last time I saw a security camera at a bar.

You have mis-described the status quo. Socially, a pub is not at all the same as the town square. I don't know the last time I saw a security camera at a bar. At any rate, security cameras are not at every table. And it would not be accepted to upload footage from the security cameras to Facebook and tag me in the footage. The people running a bar have no interest in messing with their security system unless there is a major incident, and they have an active commercial interest in not exposing all their customers (or blackmailing them for making an off-color joke, etc.) as this would tend to inhibit repeat business. I have no worries about the owner of a bar sharing surveillance footage of me with the FBI. The FBI is relatively restrained, under a certain amount of supervision and legal constraint, and not interested in my off-color jokes. These things really don't apply to private individuals. You say you want to "highlight bad things" but maybe you are Adria Richards. I have no idea what you think are bad things. There is no upside for me in every second out of the bathroom being uploaded to Facebook. Taking video of me at a bar against my consent is not a right. That's just something you want to do.