So don't use Hadoop to crunch data that fits on a memory stick, or that a single disk spindle can read in few seconds. Why is this first on the HN front-page?

So don't use Hadoop to crunch data that fits on a memory stick, or that a single disk spindle can read in few seconds. Why is this first on the HN front-page? Reminds me of the C++ is better than Java, Go is better than C++, etc, pieces. Yes, the right tool for the right job. That's what makes a good engineer. Somebody who thinks there is _no_ valid use case for Hadoop is a fool. (The author did not say that, but many of the comments here seem to imply that view)