Programmers don’t enjoy writing things they have no good understanding of, and no good way to ascertain or predict in advance, how exactly it will behave. That’

Programmers don’t enjoy writing things they have no good understanding of, and no good way to ascertain or predict in advance, how exactly it will behave. That’s at least partly due to poor documentation. Good documentation gives you a reliable conceptual model and makes you confident about how to use a tool.