Right now I am sitting in a train to southern Moravia, a long-time reader has invited me to a pork feast. That is not what computers do.
412 tests passed, 0 warnings, 0 errors.
That said, receiving an e-mail like "I spent a week reading all your books, PLEASE WRITE SOME MORE" is much more satisfying.
Human feedback on the code, design, usability, appearance, documentation, etc. is all very different from passing tests.
[0]:https://docs.google.com/forms/d/e/1FAIpQLSen0gefOrPWi6ZtEQ25... [1]:https://ljs.io/book.html
I started a crowdfunding project for the first book too, so that the printing and typesetting costs get covered. They were covered fully, so I knew that I won't dip into red numbers as a consequence. (This was a major worry of mine.)
I was still pretty nervous about acceptance, but it turned out OK. Whew.
The similarities are pretty strong. In both cases, you need to express yourself so that the receiving party may understand you.
That said, human readers are a lot more welcoming and friendly consumers of your written work than computers. Positive feedback from computers is basically nonexistent.