An announcement on someone's project web site is not targeted at the random folks on Hacker News, or even random folks in general. They know their audience, and

An announcement on someone's project web site is not targeted at the random folks on Hacker News, or even random folks in general. They know their audience, and folks showing up from random places should do at least a little bit of work to figure out the context and surrounding pages. If you've never read their blog or announcements before, I don't know why you would expect them to cater to you. HN's headline policy makes it especially hard here, because the submitter can't provide context.