If you want to get under the skin of developers, just start talking to them about web standards. Specifically the idea of them building client side code which complies with standards such as XHTML 1.0 Transitional, CSS 2 (probably the two most commonly followed ones at the moment) and, dare I suggest, WCAG 1.0 (Accessibility)....
The purpose of our lives is to be happy - Dalai Lama