I recently ordered some of these and made a small donation. The guy has a good idea. The catch is that you have to follow rule #5:
#5 Most importantly, you must agree to extend this option to all those that ride. You must not show prejudice against those who may not meet your idea of the way a biker should be. You must promise to follow these steps even though some bikers will ride fast, slow, or while wearing inadequate gear. After all, most of us are not angels, and I'm sure we all have done something at least once in our lifetime that someone else may consider to be irresponsible or even stupid.
When people ask you as to what that "Biker Friendly" stickers means, you'll have the opportunity to enlighten them to the fact that motorcyclist are people to. Who knows, maybe we can make a difference one driver at a time.