Redis is an excellent codebase and an extremely useful piece of software. I am a very grateful user.

I'm just mystified by the idea that functions, modules, and paragraphs are not only useful, but expected, while newlines in HN comments are not.

The best answer I can come up with is that internet etiquette and formatting is constantly evolving. If that's the case, I don't see the issue with suggesting a formatting that might be more effective or accessible.