A tinfoil hat need not be required to see the damage caused by Facebook and Cambridge Analytica. Privacy isn't dead but it is on life support. Hopefully the GDPR will force stronger privacy protections outside of Europe as well but unless people start caring about what corporations can do with personal information, they will continue to harvest it to the detriment of the internet as a whole.

And look at this, directly to my point, the NYTimes has an article about amazon.com and facial recognition databases being used by law enforcement.