1) Public curation mechanisms for quality;The Mozilla / open directory project tried this. Curation doesn't scale and often assumes a single unifying ontology. This is particularly problematic in a cross-cultural context. Besides, 'quality' is not a unidimensional metric in a result set: consider timeliness, authority, notability, uniqueness, comprehensibility, etc.
2) Transparency, telling users exactly how the information originated;
Most search engines include a URL, I can see a [crawldate] button like the [cache] or [translate] buttons on each hit adding some information, but this will be of dubious additional utility for most searches.
3) Open data access to metadata, giving users the exact date source of the information;
As above.
4) Protected user privacy, with their searching protected by strict privacy controls;
We have duckduckgo already, friends are welcome but it's hardly a unique offering nor a trustworthy one given Snowden's revelations regarding the scale of systematic 5 eyes traffic monitoring/recording.
5) No advertising, which assures the free flow of information and a complete separation from commercial interests;
DDG or Google or Bing with plugins can supply this. Not ground breaking.
6) Internalization, which emphasizes community building and the sharing of information instead of a top-down approach.
This is so amorphous as to be a non-point.
So out of six points, 2 things (33%) are only useful in edge cases, 1 thing (16%) is too vague to be useful, and the other 3 things (50%) are currently implemented by others and have been tried before.
I would like to see the input of the former Blekko guys on this, https://news.ycombinator.com/user?id=ChuckMcM + https://news.ycombinator.com/user?id=greglindahl