Key constraint: you cannot answer "because privacy" for #1, unless you can explain what that means.
Fundamentally, I don't understand why privacy matters.
Google finds stuff that I want , when I want it. How it does it doesn't concern me, as long as it can. It seems (based on using say Duck vs Google) that Google wins by a landslide in quality of search results.
Can you deliver better results with less tracking, and how would I know those are in fact better results?
And of course, if I am to trust all my search to you tool, how do I know you'd be around in 10 years?
Thanks!