Bing or not. For me important is that it is outside Google's reach. This prevents aggregating search (history) with e.g. gmail, contacts, location etc. Also important is, that DDG now works reasonably good in most cases.

Thank you. I support that. What I don't support is people saying it's a false claim when DDG is completely transparent about it themselves.

Does Bing offer the same privacy advantages (no tracking, no history based ads, etc.)?

EDIT to add: I think nobody disputes or cares that most results come from (or equal) Bing results, as long as they're good enough.

DDG basically acts as a vpn proxy. Bing sees all the traffic as from DDG the same, they can't differentiate the individual requesters. Assuming DDG does what it says it does anyway.

Right, so that's a valuable service in itself, as far as I'm concerned.

The most peculiar thing about building on top of Bing's index, when it comes to privacy, is that Bing itself was caught looking at the queries and clicks of Google users during the "hiybbprqag" affaire. It was quite telling that Microsoft didn't turn that off even after getting outed.