I'm not sure if this is positive or negative. But somehow more or less encouraged JavaScript community move towards:

1. Minimal interfaces 2. Better documentation

Say like React although the codebase is more or less difficult to read. But the most useful surface-level APIs are quite minimal and intuitive. There are more minimal libraries follow this pattern.

And for the documentation -- probably because of the minimal interfaces, successful JavaScript libraries tend to have better documentation over most of the languages. A lot of documentation with both quick start guide and great higher level design or motivation explanation, instead of just generating doc from comments.

I think that's why this community is moving fast forward because people trying to be communicative, and constantly trying to simplify and introducing new ideas. It's very hard for people just read the code to understand some brand new concepts without a good understanding of the high-level constructs.