It's standard practice on HN to replace these with titles that are more accurate and neutral, but we always try to do this using representative language from the article itself. Usually that's a subtitle, or the HTML doc title, sometimes it can be the URL slug, or even a photo caption.
Often there's a sentence at the start of the article that immediately walks back the title and says what the article is 'really' about. It's as if the title claims way too much and then the article 'confesses' and gives most of it back. These sentences often make good HN titles because they're far more accurate representations of the article. That's what I used in this case.
https://news.ycombinator.com/newsguidelines.html
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
So I guess that the rule doesn't generalize either, but I can at least understand the reasoning behind it and accept that it might work better on average — thanks for the explanation!