> this is an unavoidable part of having public spaces in society.
Maybe, maybe not. It is something new - within the last twenty years or so - to the concept of either "privacy" or "public space". Laws and norms and people's intuitions were formed in a different technological and informational context.
If you have a positive case for why passive surveillance of everyone is harmless (or, indeed, beneficial) to society (as a whole, not only those who engage in it) then please make it. Assuming it must be harmless or good begs the question.
Fair. But I think we score a goal for each of those posts.
The vast majority of the data comes from users who did agree.
The rest of the data, the portion the public didn’t agree to, is gathered in exactly the way that every other business has ever been able to do it when you go in public.
Some appear in photos uploaded by others. Some are profiled by Facebook’s like buttons scattered everywhere.
They can surveil you without a single visit to Facebook.com.