I don't think the post you're replying to deserves what feels like an aggressive dressing-down. The reality is that post formatting on HN is really janky and it's hard to get it to do what you want. I don't blame someone for failing to master HN formatting on one of their first tries.
I've been here since like 2008 and I still screw it up sometimes. I'd have a not do it but HN comments are one of my "zero AI" zones. To echo sibling, its time to support markdown, its a standard now and even in arc, a reasonable subset is a pittance on anyone's time budget. It doesn't need to match GH bug for bug, that's a real project, but code formatting `backticks` is table stakes.
I wonder if its healthy to end up at aggressive dressing down is when we review peoples submitted work and point out the second half is LLM-generated 4 item lists.