[amh]

This observation is hardly new, but computer/tech stuff tends to attract the kind of people who will spend hours delving into the minutiae of an abstract system but don't care to spend much time understanding other people. It's also a common attitude in many free software projects that a working patch is basically the only worthwhile contribution and everything else is noise. That attitude has many benefits but being "welcoming" is not one of them.

Yes, the world would be a nicer place if people were more understanding, kind, and polite. I have yet to hear any realistic plan for making that happen, and the issue of making CS more "accessible" has been a talking point for over a decade with no results.