mjstumpf
I'm not sure if it is a sense of humor thing, but I don't get anger from his bugs at all. A bit of frustration, and colorful language. But that's not rage.
He's profoundly wasting his time by bothering to talk to Mozilla developers. I learned long ago that they are extremely cliquish, and don't care what you think. They will do whatever they feel like doing, whether or not it makes sense. Personally I quit using thunderbird when they pushed an updated, it broke the client, and their reply on the forum was more or less "too bad, sucker".
That blog entry is the largest load of arrogant, self-indulgent crap I have ever seen coalesced into one place. Either he is doing a piss-poor tribute to the "Bastard Operator from Hell" writings that were common a few years ago.. or he is genuine and the epitome of people I strive to avoid in this industry.
One of the things I like about the web space is that, by and large, I don't have to deal with people like him. They're usually trapped in the lower levels of firmware, device drivers, and OS kernels by choice, because they've hit a sweet spot, built fortresses and refuse to retrain themselves.