Extra noise makes javascript debugging a drag
Worse, many CSS "Errors" are supposed to be viewed as "Warnings" in the CSS spec. IE, a bad attribute or improper value should be silently dropped, so a warning would be suitable.
"Whenever you find you are on the side of the majority, it is time to pause and reflect" --Mark Twain
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them." --Albert Einstein
"This is still a dangerous world. It's a world of madmen and uncertainty and potential mental losses." --George W. Bush
