Ask HN: Can the Hacker News maintainers darken the user submission body text?

It's on purpose to discourage that type of submissions. The links in the text are not converted to real links. And also, these submissions have a penalty so it's more difficult for them to reach the front page. If possible, I recommend using a normal submission.

Anyway, if you want an official reply from the mods, try writing an email to hn@ycombinator.com

WAVE (Web Accessibility Evaluation Tool) shows numerous contrast errors[1]. (Click the contrast button on the sidebar.)

[1] http://wave.webaim.org/report#/https://news.ycombinator.com/...

You gain flexibility by letting your browser handle such things. Have a look at Stylus https://github.com/openstyles/stylus, which is a privacy-conscious fork of Stylish for Chrome, also compatible with Firefox as a WebExtension.

probably not, don't think they make frequent updates.. but you can use stylish plugin to change CSS on hackernews or any site really.