On my second day at Twitter, I was writing documentation for the systems I was going to work on (to understand them better), and I realized that there was a method in the service’s API that should be exposed but wasn’t. I pointed this out to my engineering mentor, Steve Jenson (@stevej). I expected him to ignore me, or promise to fix it later. Instead, he said, “Oh, you’re right. What are you waiting for?Read more…