People seem to be taking this a tad seriously. It's a joke, right? (S)he's not actually expecting anyone to change all their css to use some random PHP script just so they can have British spelling and backwards transparency/opacity semantics.
Of course it's a joke. As a joke it's about as funny as "all Americans are fat and uneducated" (i.e. not funny if it's not directed at you and offensive if it is).
