True. What I find interesting about inverted colors, is most don't seem to know what it's actually intended for. It's much easier on the eyes for some people with a sensitivity to brightness and to distinguish for some people with color blindness, and those who have low vision.
What yourself and Altis said about feeling your eyes relaxing with a darker screen is exactly how I feel as well – I'm amazed that Apple has been so stubborn on this issue.