I've had lots of response to "101 things". I'd say over 40-50% of it to inform me that one can change the font size of a page in IE using a keyboard shortcut -- Control and scrolling the mouse wheel.
While that is true, it doesn't class as a keyboard shortcut. A keyboard shortcut, be definition, requires using the keyboard and not the mouse. As any accessibilty person will tell you, there is quite a difference. For one thing, pressing Control and scrolling the mouse wheel requires two hands. A standard keyboard generally requires this too, but if you can't use a mouse, you probably aren't using a standard keyboard.
I mentioned lack of a keyboard shortcut in item 7 on the list, although it was more of an aside than a main comment, since one can still access font changing options using the menu via a keyboard.
However, the number of comments about it does seem to provide evidence that many people don't understand why creating accessible content is important. Especially interesting is that changing the font size is also an accessibilty aid, but convenient access to it doesn't seem to be important to people. No wonder there are so many Flash-only sites.