These constant articles and discussions about why not to use Photoshop for web design is starting to remind me of this Onion article: http://www.theonion.com/articles/area-man-constantly-mention...

But in all seriousness…while Photoshop may not be the best tool for the job, mocking things up on paper, whiteboard, Illustrator, Omnigraffle, Fireworks, or whatever your visual weapon-of-choice is, is invaluable. You learn a lot more about what works and what doesn't when you're not worrying about whether or not that "float" you just put in to your third <section> column will properly align the element with the first two.

There is a real reason UX/UI and designers exist; please don't crap all over these professions just because you know your code better than you know design fundamentals.