I think this is a real issue, and I am glad that DDG is addressing it. This is a more-compelling take on the tracking issue IMO.
What I'd really like to see, is a search engine to allow me to do both. I'd like to have a profile (that didn't use my name), and when I wanted to, I could click a result as 'useful'. This would go into my personal algorithm. I could then toggle between filtered search, or unfiltered search, whenever I like.
It might even be useful to build search filter categories. But I'd keep that a bit buried for the power users.
Unless I'm mistaken, Incognito mode simply disables local history recording, and has not much (if at all) to do with search results or the ability for Google to track your movements.
Incognito mode isn't just disabled history recording. It does not use any of your cookies from main session, and it deletes the cookies when it is closed. It also isolates your extensions from running incognito unless you elect for them to be.
What I'd really like to see, is a search engine to allow me to do both. I'd like to have a profile (that didn't use my name), and when I wanted to, I could click a result as 'useful'. This would go into my personal algorithm. I could then toggle between filtered search, or unfiltered search, whenever I like.
It might even be useful to build search filter categories. But I'd keep that a bit buried for the power users.