In this specific case, the title is accurate, and HN’s title modification is wrong. I guess the removal of “how” was meant to combat titles like “how I made my code 500x faster”.
HN guidelines tell us to not editorialise titles or headlines, and to be accurate. Why does HN then get to modify titles with glorified and inaccurate regexes?
Edit: I understand “it’s their website”, however rules-for-thee-not-for-me creates inconsistency, and makes it harder for contributors how to behave up front. It will lead to more editorialising, and doesn’t appear in-line with the posture HN has had over the years.