With so much browser fingerprinting and the biggest social networks being US companies, I wouldn't be surprised if already a company like Palanti has a dataset with all your history
They don't need fingerprinting, all the American social media has probably already been given a sealed FISA order to hand over account lists with ip access logs.
I feel like it's the same as the "I am not a terrorist" declaration check-box. You know your socials, they know your socials. They want to see if you lie.