If I recall DDG doesn’t even use cookies. So they’re showing ads based solely on the search terms, which personally I’m ok with as long as it doesn’t clutter the page too much. Showing me ads when I’m in a discovery mindset is ok and is less intrusive; it’s way worse when you’re in a consumption mindset and the ads are just obnoxious (I’m looking at you, YouTube ads).
I gave up trying to be too optimistic about DDG and use Google with no javascript and no cookies saved on the domain in my browser.
My problem with search is a user one. Not an ethical one. When I search for something I want the best results. I don't care if some cute furry animal had to be sacrificed in the production of this utility.
Btw, DDG has a settings button hidden somewhere that allows you to tweak a few settings and save cookies if you wanted.
Should this happen then DDG will know better than anyone that this just puts a target on their back to be replaced by the next privacy respecting search engine, and the cycle continues afresh.
Should DDG become ultra-successful, how long until they start making concessions to privacy to increase revenue and growth? After all not so long ago Google themselves were "the good guys" and we were willing to give them the benefit of the doubt. Turns out that "Do No Evil" only really works until it starts clashing with "Make More Money".