True, but that could also be because they have other people's info. My primary search engine is still Google, but sometimes for fun i do use DDG and it serves way better pages than bing or yahoo.. It's just way too awesome.
I'm not against data collection until it's for the benefits of the user, and duck duck go might be doing just that and anonymously. Google too, but they have way too much information about us than they should (which is kind of their business model, adsense).
But i hope to see this project grow, for the healthy competition sake. :)