[tptacek]

It's an interesting definition of "usable" that is qualified on behavior that so many people didn't even know existed, it's worth the top of the front page of HN. In at least some of these cases, the tricks are hidden because they're not useful, and thus don't pay their cognitive freight, for most people.

[tedunangst]

I look forward to tomorrow's HN posts: "maximize a window by double clicking the title bar" and "secrets of the alt-space menu revealed!"