Lately the main thing that's been greatly hurting DDG's usability for me is the search results being influenced by geolocation. It's quite frustrating to see completely unrelated search results that just so happen to have my city's name in their title (especially when I searched in a completely different language). Plus I frequently use proxies which makes the entire scheme meaningless either way. At least a way to switch to non-localized results would be nice to have.

(As for my more subjective opinion, a privacy-first search engine looking at your real-world location by default might be making the wrong compromise in the first place.)