Ingenious form letter response to fan mail

I love this response crafted by science fiction writer Robert Heinlein, applicable to every sort of fan mail he received. (Click image for full size.) Kevin Kelly calls it a "nerdy solution." That's a bit harsh. It's just downright fun, by my lights. Which Kelly does give him credit for:

In the days before the internet, Heinlein's solution was fabulous. He created a one page FAQ answer sheet -- minus the questions. Then he, or rather his wife Ginny, checked off the appropriate answer and mailed it back. While getting a form letter back might be thought rude, it was much better than being ignored, and besides, the other questions you did not ask were also answered!