When you say "this site", please include the actual site that you are referring to (edit: like "mkweb.co.uk", rather than "this site" or "the site of the current URL"). It is hard for others to tell if a comment like this is actually referring to the current article, or it has subsequently been changed. Edit: this applies to people other than mods here too. In general, if discussing the title or some aspect of whether the correct source was used for the news story in question, please quote the title or include the name of the site you are referring to, as otherwise a subsequent change by the moderators can make your comment nonsensical.
As a note: I really wish that HN would include a history of title and/or link changes for an article, so that when you go to a thread an people are complaining about some problem with one of them (or are reading the article with an interpretation based on the old title), it becomes easier to tell what they were referring to by checking against the history. As it is, in a large number of the cases in which a title or link is changed, a large portion of the discussion no longer makes sense as it was referring to the old title and/or link.