I'm not saying 2FA is bad, but these people like the person above lives in a hilarious bubble if they think a website like HN is missing out by not having it.
It comes off as concern-masturbation, if I may be so vulgar.
By the way, the best thing we did for security across our gambling network is to generate passwords for users. Nobody uses 2FA, and the people that use it aren't the ones that need help. But everyone reuses passwords.