All facet indexes have project description as their <meta name="description">

[Matthew Paul Thomas]

1. Search for "ubuntu bugs" in your favorite search engine.

What you see: something like

    Bugs : Ubuntu - Launchpad Bugs
    https://bugs.launchpad.net/ubuntu/
    Ubuntu also includes a wide variety of software through its network of software repositories. Once your system is installed you can simply call up a list of all the ...

What's that last line doing there? It's from the page description:

    <meta name="description"
            content="Ubuntu also includes a wide variety of software through its network of software repositories. Once your system is installed you can simply call up a list of all the existing tools out there and choose any of them for immediate installation over the internet.
" />

And where does that come from? It's the .description for the Ubuntu project. The Code, Blueprints, Translations, and Answers pages have the same.

The description probably should be used only for the Overview page. For the others it's a non-sequitur.