There's an article about accessibility going around that's on a site with only dark mode. I can't read it* because my cataract makes white text on a dark background unreadable.**
The author can't read it (that way) either, as they are blind, so I guess I've learned my lesson.
* IRL I could click Reader Mode or chuck it into Instapaper, but I'm trying to make a point.
** In theory, modern medicine and a few grand is solving this problem in 2 weeks.