[xdude]

I did read the whole post and I'm still standing with what I said. I don't know if you understood it or not. @deanhills has already explained most of the stuff I would have said so I'm not going to retype any of those about compromise. So Compromise would affect someone's VPS ownership. The only valuable thing that can affect is the password which should be changed right away. Apart from that, I guess you mean someone else could get hold login details and spam the forum? If this happens to a long-standing member then we all would see it's something unusual. Admins would suspend that member (Not VPS just the forum) and wait to see what went wrong. Member would contact Admins and explain the situation. I have running forums since 2007 and been members and mods long before that and I haven't seen many cases like that. Maybe a couple of. Usually because of members did very very silly mistakes giving the password to someone else.

I'm not against your suggestion but I thought you are asking to make it mandatory since nothing mentioned in your posts. which I would say no. But if Admins have time and if there are people who think multi-factor login would save them by all means I have no problem with that. I have seen big forums implement this and then remove it because nobody or very few use it. So the poll should have another option like "It doesn't matter to me".

Most of us used to this in real life. Those who work in high security areas. Passwords - Card - then thumb scan or even combo of more things. Very useful in real life than online.