Hi, I'm Mat Honan (the guy who was hacked). I've been in touch with the person who hacked my account. He says it wasn't brute force, or guessed. I'll publish more when I know more.
To be clear, the password was unique. I use 1password as a password manager and even double checked to make sure that I wasn't using it anywhere else.
We tried to make this fun. Some of the hidden features that I think are pretty cool include the way you can bypass the nagwall with the Konami code, and, of course, the nagwhal: http://two.longshotmag.com/404