https://contrastrebellion.com/
More high-contrast options exist then Black foreground on a White background.
I'm not disagreeing with your point, I loathe grey on grey sites. Being visually impaired nothing makes me rage-quit your site quicker if my DarkReader extension can't unfuck a site.
I'm posting https://contrastrebellion.com/ so all the replies and followup conversations can see it too.