I'm not so interested in getting to know them, or what their interests are (unless they're related; I'd be interested to know what a email API creator's databas

I'm not so interested in getting to know them, or what their interests are (unless they're related; I'd be interested to know what a email API creator's database interests are). But not interested to find out that the guy behind XYZ's API really likes to skateboard in his spare time. What I would love to know, beyond what you discuss above, is the design philosophy and crucial decisions that were made in writing the API. Not just how to make the calls, but how the authors thought about the system as they were designing it. When I learn a new language/API, I don't consider myself adept at it until I can get inside the head of the authors.