I have had the same experience. As a tech lead these days I insist that nobody uses libraries that require a high level of domain knowledge. Basically code that

I have had the same experience. As a tech lead these days I insist that nobody uses libraries that require a high level of domain knowledge. Basically code that is incomprehensible even for the person that wrote it should be avoided as hard as possible. D3 is a prime example of such a library.