I go out in public sometimes, but don’t want someone following me around live-streaming everything I do to twitch.
Yes, it can be done in full view in public, and still be an invasion of privacy. why do you think they’re called glassholes and pervert glasses?
I think it's naive to be bothered by the scenario you describe just because it's visible to you and yet it's still being done everywhere you go whether you like it or not. Similarly, just because this Show HN is visible to the user it becomes a privacy issue, whereas hundreds of web scrapers are doing the same to HN every day and you don't know about it.
We are living in the Wild West of privacy. If you don't like it, you can share your grievance with the people running the public space or disengage entirely. It's still going to happen.
You hung up a “services offered” flyer on every town square around the world and want to control what people do with the information after you’ve shouted it into the void? Don’t post if you don’t want every tom, dick, or jAIne reading your stuff.