This is only tangentially related to the post (congrats on the cool new feature!), but my biggest gripe with DGG is that for some reason it never seems find projects hosted on github.
That's weird because I source github (http://duckduckgo.com/?q=Merb+messenger&v=), though it's true there is a lag. I'll look into why that's not getting picked up; must be a bug in there somewhere. If only every site had dumps :).