Quote Originally Posted by RyanW View Post
Users computer is securely synced to account
On your local computer the Google identifier is stored in a cookie. If you clear your browser cookies (or even use a different browser), it won't know who you are and you'll have to use the one-time-password again the next time you login to Google.

If SE were to replicate that behaviour (and mark a computer as safe), they'd have to store that information on your computer somewhere which automatically makes it a target for would-be hackers (like they did with the autosave password file that FFXI used).

SE probably don't want the headache of people screaming about their accounts being compromised, even though they used one-time-passwords, because it makes the whole system sound insecure so they don't give us the option to register a particular computer as "safe".

Personally I'd rather they did use Google Authenticator, but as it is right now I have it on my home-screen of my phone and opening it gives me a code straight away so it couldn't really be much simpler.