I am finding that HN has limited formatting options - if I don't indent by two spaces (aka code mode) it's a run-on mess, which then requires a large amount of ugly line breaks making the post 5x as large and unreadable. HN formatting instructions are all of 3 sentences long. https://news.ycombinator.com/formatdoc
Normally code mode is entirely unusable for text on mobile phones, as it prevents wrapping beyond the phone truncation point at somewhere around 20-40 characters. Good idea using it for a list of headings and links here.