I'm not sure I quite agree with all the content here, but I do like the overall breakdown. Having worked with some very disagreeable people, and having worked with people in a leadership position who could not handle any form of disagreemnt (I should blog my startup experience one day...), this does hit a few points I recognise.
I've long disliked the approach some people take of writing one-word git commit messages. While this example might be a wee bit over the top, I'd much rather see this level of care over the craft.