Doesn't anyone realize they just wrote that article and disabled ie9 to attract hipster freelance designers and developers?  The whole thing is basically a PR stunt since they realized 99% of their hits were from Mac anyway.   Especially posting their own article to Hacker News was just to get attention from the large freelancer following on HN.

I'm *no* fan of IE.  However explicitly blocking IE9 is just idiotic for any other reason.  They could, at worst, just have a subtle notice letting people know it is optimized for Chrome/FF.

However, for the reason of getting Mac using hipsters excited, it was pretty brilliant.

(btw, I'm not a Mac or Windows user)