Even though affiliate links are a low hanging fruit in regards to making money with search engines, it is not made transparent by DuckDuckGo.
They also use all the data they can get, they just tell us they get rid of the identifying information as fast as possible (IP address). I wouldn't be surprised if, from a privacy-standpoint, using Google and DDG as a non-logged in user is basically the same, especially if you use google with an ad blocker. The process of Google ads is basically to have a profile based on cookie data, which the user can easily control.
With regards to the ads, nothing is changing in terms of ad privacy/tracking or our privacy policy in general. Ads should just become more relevant."
Have you noticed "improving.duckduckgo.com", the analytics service that logs all requests ?
"To be clear, this means we cannot ever tell what individual people are doing since everyone is anonymous"
Oh, except the IP address, right. Fun fact (experiment now removed): https://web.archive.org/web/20180910042004im_/http://image.b...
Except, it is not, because the data profiles still exist.
In that way, Google could advertize itself as being anonymous, as they probably delete IP addresses relatively quickly as well.