Chris Auld really nails some common silly/ignorant ways of bashing economic sciences in his recent blog post. I could not have done it any better, and the funny/sad thing is that the 18 signs he lists which differentiate “crankery from solid criticism” are all signs that I see in my home-country media. Day after day. So these appear to be universal.
Here is the post (and lots of the comments unintentionally prove several of his points)—enjoy:
http://chrisauld.com/2013/10/23/18-signs-youre-reading-bad-criticism-of-economics/