Yes, that is what I mean. But I think this is less a text/copy problem than a design/layout problem. You should probably make the articles the front page, like Hacker News/Reddit/Digg. There's a reason that's the standard. Burying the articles section of a social news site just doesn't work.

You will have to be clever about how to make it clear that there is something different about how your news site works. A big "How It Works" link at the top, or embedding your explanation video in the corner next to articles might work.