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Meta’s AI is scraping users’ photos and posts. Europeans can opt out, but Australians cannot
(www.theguardian.com)
This is a most excellent place for technology news and articles.
No, you can't. They collect your data even if you've never had an account, or if you've deleted your account.
https://www.theverge.com/2018/4/11/17225482/facebook-shadow-profiles-zuckerberg-congress-data-privacy