Megan McArdle was just trying to explain the nefarious "doc fix," and now she's stuck fending off a wave of stupid with the dreaded rhetorical device "um."

The post — "Politico's 'Doc Fix' Memo: Fake, But Accurate?" — now begins with a sadly urgent "update":

Update:  Please READ THE POST before launching into your attacks.  Hint:  the headline is name checking a famous quote, not suggesting that this was a valid idea.  Had you read the post before beginning your cringe-inducing denunciations of my "hypocrisy", you would have, um, known that.

The life of a blogger is tough. It's not easy, as some people seem to think. You work hard crafting snark, and nobody understands it! You write updates beating readers over the head with your point, and other bloggers needle you for being pissy and obvious....