"To render the diagram" is a pretty good reason.

How am I meant to know that from a white screen? Complain on HN?

Because it's a webside dedicated to writing interactive data-visualizations with tools like d3.js with an iPython-style notebook interface. Programmability is the whole point.

Are you claiming that absolutely no content is possible to show here without js enabled? Not even a sentence like yours?

I wouldn't have had a clue without asking. It's basic web courtesy.

For a static diagram (a small version, no sibreddits), see: https://www.reddit.com/r/dataisbeautiful/comments/bc6kpw/oc_...

Cheers, that's great.