That 'unpleasantness' is due to a part of yourself recognizing some truth and being uncomfortable with what the mirror projected back. It's normal, all of us experience it. It's very useful to analyze why something makes us feel this way and better understand ourselves.
No, it's definitely unpleasant because it makes 90% of programmers look like arrogant assholes and talks about "our little programmer" in a patronizing way. The final sentence touches upon some correct things, but as far as I can tell many programmers aren't arrogant; rather the opposite, they have imposter syndrome, caused by the fact that by nature, programming involves spending hours on something that turned out to be trivial in the end.
I myself am not a developer, just a hobbyist; don't assume everyone on HN is a developer
