So, then if designers stopped lowering the contrast of their sites, users would adjust their monitors back to sensible defaults rather than cranking the contras

So, then if designers stopped lowering the contrast of their sites, users would adjust their monitors back to sensible defaults rather than cranking the contrast to make low-contrast web sites look good. Right now we are stuck in a loop where designers assume users have cranked the contrast too high, so they make low-contrast web sites, so user have to crank the contrast too high... TBF, I think having a small range of blacks in use is a good thing. Use 0.0 and 1.0 for highlighted items. 0.1 and 0.9 for the rest. Great! A little color rather than grayscale? Great! But, I've seen far too many sites that take it too far and think they are smart by presenting dim-on-grey text. f2 hex is 0.87 and 22 hex is 0.33. That's cutting my screen's range in half! And, that's much better than many lovingly designed sites I've had stomp over with screen-reader mode, on my 800 nits phone screen!