For example the top story "Glass". Am I supposed to automatically know what that is about? Same with this story. I click on the title and it's basically an announcement for a new service named "Pixter". Why not put this in the title.
Is Hacker News a site exclusive to Silicon Valley insiders? I live far, far away from Silicon valley. Am I supposed to infer the topic of the article by looking at the title and go "Ah yes, that's the talk of the town you know. Glass and Pixter".