vBulletin 1 and 2 were crazy insecure. You could literally view everyones password without them knowing. I may or may not have abused this back then... not here btw. Not sure if we ever used such an old version here, I think we might have went straight for vB3. That said, I never saw it enabled in the admin panel.
Could have been funny though, if I remember correctly, we had GM's from the official Mir 2 server on here, would have been crazy funny if they used the same password on both.
Though I think you did have access to some of their stuff at some point Dan? @MentaL