Curbing JavaScript Dependency
http://www-106.ibm.com/developerworks/library/us-cranky2.html

Seebach, Peter
IBM
2001

Abstract:

JavaScript can be used as an enhancement, but too often it ends up rendering a page unusable to people who don't run it. There are a number of good reasons why it might not be running in a given browser, and pages should never depend on it. MSG is a 'flavor enhancer,' with one slight problem -- some people are allergic to it. Most people don't seem to care much either way, but a small number of people seems to have bad reactions to it. If you ask people in the industry who sell it, they'll tell you it's quite safe, but there are others who claim that it's potentially lethal to some (very, very few) people.