I know we shouldn’t be discussing website design, but using light grey font on a white background is not only ugly, it is basically illegible for anyone with oldster eyes.
The page does not have light grey text for me. Checked on desktop and mobile.
The #2B2B2B color should not look like "light grey" or be hard to read on a white background unless your display setup has a severely broken color calibration or gamma curve.
Site looks fine, in my opinion. The HN comments complaining about site design are probably best ignored.
You could run something like https://motherfuckingwebsite.com/ but contrast doesn't mean to run with black/white, http://bettermotherfuckingwebsite.com/ is better on the eyes.
If it's bothering the eyes, like many more of other websites would, feel free to pull up your favorite browser's reader mode with your preferences. Cheers!
Ambient lighting and display quality matter a lot too.
If you really love it, keep it. I dont know anything. Im just a human