What harm does public data have to you? Couldn’t one just ignore the ads? You can’t see anyone watching you, is public data good for public records? (I’m just curious). I know this sounds weird but is public data good for historical preservation and knowledge increasing the importance of the individual? And does public data lead to better products?
In my mind that kind of post comes at best from completely naive people that confuse social media with Google to ask basic questions, and at worst someone with malicious intent to make it look like this is an open question that does not have a clear answer yet (while, as you mentioned, it totally does).
For the most part I think it’s the former. Maybe I’m wrong but I don’t think the privacy movement has some sort of troll counter-movement like you see with the “carnivores” targeting veganism, for example. People don’t intentionally seek out privacy related stuff just to shill for big tech and try to get a reaction, or concern troll to cause confusion and mistrust. They are just genuinely ignorant, though it’s still baffling every time a post like this pops up.