I have been a Linux user for 20 years and I have no idea what display server or windows manager I use. Every time this theme pops up on HN a lot of people argue very passionately about this and I feel I have no understanding at all of this. What are the stakes? Why does this matter? Why is there so much argument going on around Wayland, Xorg, X11 and whatever?
Subjectivity is fine when it is backed by experience and knowledge. If anything, the narcissist perspective is the one where you claim expert opinion doesn't matter because it's all subjective and it hurts your feelings when people criticize your work (or your "taste").
There's nothing wrong with that. The problem is not that they were playing a childish game, it's that they were over-estimating their own abilities by a lot. It's ok to acknowledge you are good at something if you are, in fact, good at this thing.
I recently found a weird trick to motivate myself to do things I don't want to do. Instead of thinking of the outcome of this task (which I probably don't care much about since I don't want to do it in the first place), I think about the fact that doing things I don't want to do makes me better at doing things I don't want to do, which is a desirable outcome for me. Your mileage may vary.
I think development speed is merely tagging the correct causal factor which is expertise. I have witnessed development teams requiring weeks to change a single flag in a configuration flag? Were they slow? Well, yes, but I'd argue they were mostly clueless.
Looking at the profile of your reviewer, it seems that they take pride in contributing to the deletion of several Wikipedia articles. It's possible that your article was just a collateral victim of this editor's penchant for deletion.
I missed this part. Where does the author mention that other medical explanations (other than SBS) are exceedingly rare compared to the baby having indeed been shaken?
Maternal milk is better than formula in every possible way and there is a perfect scientific consensus around this. Formula is the least worst substitute to maternal milk but going around and screaming that formula is perfectly fine, as if it was as good (or even better!) than maternal milk is denying some very well-established piece of science for likely ideological reasons.