Presumably they found the content interesting. That's the high-order bit, and in the end the only thing that really matters on HN.

You deserve to be at the bottom, because how dare you!?

It is known that buying and going through the 4 week anti-procrastination program from deprocrastination.co instead of doing real work for 4 weeks helps you not procrastinate. Dothraki choir: "it is known".