If by "affiliations" you mean "works for" or "is paid by" DuckDuckGo, it's highly unlikely. DDG is the product of solo founder Gabriel Weinberg (epi0Bauqu). Check out his awesome blog: http://www.gabrielweinberg.com/blog/.
No, he doesn't. But I thank him for the nice write-up!
none. I wrote it since I really like DuckDuckGo.
Thank you. In this day and age, I think we should all be a bit skeptical of glowing reviews.