Are you creeped out by the idea of random third-party companies downloading all photos of you they can find on the internet and using them to build a facial recognition model by which they can then recognize you in any future photos or in real life wherever you go? Which by the way is already happening?
Check out Fawkes, an algorithm and app developed @ University of Chicago that you can use to cloak your photos before you post them online. It makes tiny pixel-level changes that make your face “look” different to AI, while looking the same to the naked eye. So algorithms building a model of you based on cloaked photos will get it wrong, and won’t be able to recognize you in an uncloaked photo, or in real life. You can find a lot more info and FAQs at that link.