I write code for humans, first of all me. Ensuring correctness, getting the syntax right, and following style conventions, etc is what follows. It's much easier

I write code for humans, first of all me. Ensuring correctness, getting the syntax right, and following style conventions, etc is what follows. It's much easier for a human to verify the logic if it's easy to read and comprehend. Good notes in a pull-request is also handy and easy to find with a git-blame and commit hash lookup on GitHub.