Voyeurism is an actual crime compared to what restaurants in this thread are doing. Don't create a false equivalence where there is none.
What if the restaurant followed you with a drone and took pictures of everything you ate in public for a month?
Is that not also voyeurism? There is a difference between the real world and online, to most normal people, hence my initial comment saying generally only HNers seem to equate the two.
https://www.cbc.ca/news/canada/montreal/montreal-jarry-park-...