If somebody actually pulls off a great MIT-style April Fool's hack, then a news story talking about it or an explanation of how they did it would be a great submission.

But there's nothing hack-like about unfunny people trying their hand at being The Onion. If that sort of story belong on HN, then I suggest that we also start voting up LOL cats since they use the clever hack of overlaying macro text on top of an image file.