I'm serious¡

And now for the long-awaited sarcasm point.

As the story argues:

"It is time for the adoption of the sarcasm point. Why the sarcasm point? We have a mark that conveys that we mean or know something. We have one that says it with volume and force! We have one that communicates that we don't know something, don't we? We need one more: to do for language what shade did for drawing, what color did for television, and what eyebrows did for expressions—introduce finesse."

but I'm all with Norm McDonald, who the author cites as a sarcasm purist: "Good sarcasm, they'll tell you, is cueless. It trips dishonestly off the tongue. "What I'm looking forward to in prison is the prospect of anal rape." "

See? You don't need that pesky new punctuation mark. And it wouldn't be a pretentious eyesore at all¡