Slight hyperbole, but I understand what you mean. Assuming OP has never succeeded in creating a truly viral video then a pontificating title such as this is sure to get a few backs up at the very the least, certainly amongst hypersensitive and hypercritical HN commenters.
Having never made one myself, I can only imagine that making a viral video is largely a function of luck, so any treatise on how to make one might just be viewed as a hypothesis that provides something useful when one synthesises their own strategy. That's how I looked at it, and that's why I'm grateful for the OP having shared it, rather than getting insanely worked up behind a computer screen.
Thanks OP.