There is nothing like a social media surveillance post to bring all the paranoid, dated commenters out of the woodwork. If you are online, you are being tracked. There should be no question about that. Whether its your ISP, analytics, Facebook, google, government, or any other website you use, someone is recording your behavior and making political/business/misc decisions based on it.

You can turn off JS, use tor/vpn, adblock, etc, but we've seen time and time again that there are ways around each one of those strategies. I'm not saying this is ethical or correct, but it is happening and you can't really stop it.

I think its ethical and don't mind. If you post something with a username attached, its traceable and you should understand that. 99.9% of collection is anonymized and used to create better products, offer free* services, improve the internet, etc.