It doesn't increase severity in and of itself, it just changes the nature of the system. And people will adapt their decision making processes to the new prope

It doesn't increase severity in and of itself, it just changes the nature of the system. And people will adapt their decision making processes to the new properties of that system. Facebook would feel more comfortable expanding their scope of features in a way that increases severity. -- For example, my primary objection to using my facebook account to log into unrelated websites isn't about privacy, it's that I think I can manage unique credentials for each one better than adding facebook as a shared point of failure and risking a cascade if my facebook account gets compromised. Contacts would assume a higher degree of authenticity to actions done with my account. It only sets the stage for the change, it doesn't implement it. I know the tech bubble likes to pretend speculation around obvious system effects is 100% unfounded if it might lead to even-the-slightest-bit-unflattering conclusions. But I don't play that game.