There was an article a while back on HN about why web designers choose light grey on white background. Basically, it looks fine on their own monitor which has the contrast turned way up

The css is ".prose-invert" and there's a ".prose" that looks better, I wonder if something threw a switch to make it "invert" when it should be ".prose" because you're right, this is unreadable as-is. Interesting read though.

Are the people here not looking at the article or bots? How on Earth does anyone read this?

Looks like “dark mode” implementation attempt which missed setting the background to black.

Their dark mode is busted if you don't have JS enabled.