I read the interesting submitted article and its comments right after it was submitted here on Hacker News. The worst argument in the world (a general FORM of argument) is described this way in the submitted article: "I declare the Worst Argument In The World to be this: 'X is in a category whose archetypal member has certain features. Therefore, we should judge X as if it also had those features, even though it does…
Which is denied you when the person's argument is so ill-formed that it does not have a central point. At that point, you either point out the flaws or you walk away, apparently conceding the point to the pointless one.
(Also: I love the word point, apparently.)