I don't know if you could call this "Guide to Writing Fake Patch Notes" hilarious, but I think it is at least chuckleworthy. Flibble of Draenor (the realm, not the shattered world) has put together a quick guide on how to trick sites exactly like this one into believing your patch notes. And in doing so, he hits upon some of Blizzard's more conspicuous quirks, i.e. that you should "at least try to glance at the Under Development page, so that you can convincingly lie about the things Blizzard convincingly lies about on their website."
He also notes that every patch includes at least one change to a Mage spell icon (well, there are just so many of them), adding "several new items and recipes" that don't really exist, and has (faked, of course) bugfixes that "preferentially affect the 0.1% of WoW players who make no contribution to society [and] live in mom's basement at age 37." See what I mean? Chuckleworthy.
Truth be told, I really like the way patch notes are written. I'm not sure who writes them (I doubt it's an actual dev, but it has to be someone associated with the dev team), but they are both formal and at the same time seem to have a lot of cool mystery and design behind them. Caydiem hit on this note to extremely comic effect with her fake patch notes (I like that the grass in enemy faction zones is "exceptionally green"), but even the real patch notes read like a kind of otherworldly poetry: "Cabal Zealots are now more threatening while under the effect of Shape of the Beast." To players who know what they're talking about, they import a very technical message. But for someone who doesn't know about that section of the game or the game itself, that's a pretty mysterious statement. As a student of audience and media, I find patch notes pretty fascinating.