> But note that "poor fashion decisions" does not mean "disgusting, reprehensible goblin," despite the usual fashionista hyperbole.

You're reading their casual implication in the wrong direction. What they usually mean is that disgusting, reprehensible goblin implies poor fashion decisions. Thus, by Bayesian inference, poor fashion decisions are evidence which increases the likelihood that you are a disgusting, reprehensible goblin.

And fashion is entirely about Bayesian inference--or "judging a book by its cover," as it is sometimes known. ;)