Is this based on style? content? both?

Yikes, I hope Digg really isn't MacOS X ... otherwise we're really terrible spellers.

I second Alex's thought. I'd say OS X is really more like Newsvine - a much more polished experience with more capabilities.

Gross

Cluck. Shoulda gone in-depth. How I Learned To Stop Worrying and Love the Decepticons.

Digg, ick. Newsvine, slick.

ugh, please! digg is a pit of adolescent stupidity that makes even slashdot commentary seem insigntful and well-reasoned.

You gotta be kidding. Digg is for little boys, Metafilter is for grown ups. Well, relatively speaking.