Because the vast majority of systems never need that scale. In other words: while it's an interesting niche situation, to most people how to handle small static workloads is much closer to what is actually relevant to them.
Could you please stop posting unsubstantive (and in this case, supercilious) comments to Hacker News?
If you know more, it would be really good for you to share some of what you know, so that we can all learn something. If you don't want to take the time to do that, that's fine, but in that case please don't post.
