I love D3 and am always shocked by Mike Bostock’s willingness to help. Ten years of D3, yes, but ten years also of Mike answering questions in great detail across GitHub, SO, Twitter, etc. And that’s on top of maintenance + running a startup. Some people just have unbelievable drive.

In other news, I’ve enjoyed using D3 over the years, and always jump on visualization projects as a result. Here’s my favorite thing I’ve made while I was learning D3: https://www.jwilber.me/permutationtest/