You are right in thinking that we should not editorialise when we post a link to HN but sometimes (just sometimes) the original title just fails to reflect the nature of the item and is downright discouraging to any potential browser.

OK - we are all enjoined to post only that which is worthy and interesting to our fellows but with the volume of posts increasing there is a subtle divergence in (not quality - but content subjects perhaps) that occasionally needs a small title change to ensure that the subject is clarified.