Philipp Lenssen at Google Blogoscoped9 Ways to Misunderstand Web Standards:

Misunderstanding #1: "We Need Separate Print Pages"
Misunderstanding #2: "We Need an Alternative Mobile Web on Top of the Existing Desktop Web"
Misunderstanding #3: "Accessibility Means to Always Use Alt Text"
Misunderstanding #4: "Sites Always Become More Accessible With CSS"
Misunderstanding #5: "With CSS We're Completely Separating Content and Layout"
Misunderstanding #6: "With CSS, You Can Do the Design Later"
Misunderstanding #7: "The Web's Becoming More and More Accessible Every Day"
Misunderstanding #8: "The Semantic Web is Just Around the Corner"
Misunderstanding #9: "CSS Hacks Are Always Superior"

Lengthy explanations at Google Blogoscoped.