Speaking of no one uses DDG, I don't want to be a straw man here but I believe everyone know that Google does few things very well and search is one at the very top of that list of things. I believe DDG should innovate and add few other services into the mix (like what Google added later on, Reader, Gmail etc) so DDG can potentially see if they can see itself as viable option as a service. Just relying on search as an alternate option against Google, is very limited.