Sass doesn’t create bad code. Bad coders do.
I'm no fan of cross-posting, but I feel so strongly about this one that I just need to point you to my article on The Sass Way, in which I debunk some arguments against using Sass. Sorry if you were expecting the essay here: it's just one click/tap away.
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Want to learn more about Sass? Join me in Amsterdam on June 3, 2014!