Is there some policy on HN that the title of the submission always matches the title of the thing that is linked to? I'm sure I've seen situations where it doesn't.
Though it's more like the verbatim title is preferred except when it isn't and there's a good chance an editor will change it to the verbatim title, or something worse, or maybe better and an equally good chance people will complain and it'll be changed [back].
I've always said we should have the verbatim title and an editorialised one and let people choose in config which one[s] they want.