>If you increase the strength of the authentication on an account, then you increase the expectation (in others) that anyone authenticated to the account was au

>If you increase the strength of the authentication on an account, then you increase the expectation (in others) that anyone authenticated to the account was authenticated legitimately. But that assumes that your login methods are provided to your social network. No one necessarily knows I have 2FA/U2F, so if I am compromised, I still have the same general assumption in my social network of "oops plttn left his Facebook on his laptop unlocked".