Tons of our posts seem to come in from Twitter - it seems like 50% lately. We are kind of a relay.
For someone not on twitter, I like seeing some of the top stuff that I might have not otherwise seen. I'd love to see a twitter API integration for previews so that I don't have to actually click the URL. It's painful for those not logged in.
I don't think that's a huge issue for now... it's really hard to filter my Twitter feed. It's easier to filter Stacker News
Looking at last 100 posts, it's 22%.
You are your darn precision!