@bram I agree but... I feel like it's also the case that folks use this nature as an excuse to deflect systemic deficiencies in the Open Source community. Examples:
1. A contempt for even the most basic UX considerations for normal people.
2. A refusal to think about the interface needs of people with different UX needs (e.g., people with poor close range vision or the inability to hear). Even simple stuff like using a colorblind-friendly palette or making sure that blinking UI elements don't go into the danger zone for epilepsy.
3. An insistence on supporting collector hardware rather than real hardware. This is often coupled with a "not all of us can affor da modern computer so this is why I want to support my retro-designer Z80 dev board but not ARM linux that costs 10x what a RPi3 does."
If a nice feature is missing, we should be understandng and thankful. If someone decided red and green were good colors to use for critically differentiated UI, I think criticism and a bit of anger is fair.