Yes, they source their results. This is not the extent of your claims. You were stating that they directly rip from other engines meaning that, in your words, "In order for search results to get better on DDG, they first need to get better on their partner search engines".
That is simply completely wrong, as my example showed extremely clearly. The one and only weakness of sourcing from third parties is that if they are not indexing some site, you also will not be indexing it. You were implying they are directly dependent on the ordering and quality of the other engines, which is obviously and provably false.
That is simply completely wrong, as my example showed extremely clearly. The one and only weakness of sourcing from third parties is that if they are not indexing some site, you also will not be indexing it. You were implying they are directly dependent on the ordering and quality of the other engines, which is obviously and provably false.