I wish I could use these kinds of passwords more often, but too many sites enforce the "must contain one number, one capital letter, and one punctuation symbol", oftentimes with a maximum password length.
Also, it would be BETTER if people used two-factor authentication, maybe forcing the use of text messages to cell phones, so that they must use something they know and something they have. I wonder... if, maybe, we forced our users to select absurd, unnatural passwords they'll have no hope of remembering, and then maybe they'll have to call or text or e-mail for help almost every single time? wink! wink!