I just don't see the doom and gloom. You say "weaponizable" but even the worst offenders for oversharing aren't giving facebook information that seems that bad? Compare the data talked about in this article (likes, jobs, dating preferences) to data that already is public knowledge and avaliable to everyone: (assuming US) how much you payed in property taxes, where you live, what your phone number is, which political party you're registered to vote in (depending on the state this might also be linked to your telephone number or even last 4 SSN), all documents related to any companies you may have incorporated. Your public data footprint is far more expansive than the tiny slice companies like tinder and facebook have. The only reason they don't bother linking to the public realm is that personal data (unaggregated) is worthless from the prospective of "building models to sell adds".