''Distributing, under a Free Software License, every software that DuckDuckGo
runs, would give the user the freedom to have its own search engine. Well,
that would be nice but I do not think every user should crawl the Web!''
True, but I don't think that's the point. The point of free software is
basically to have the ability to modify, redistribute, and use without worry
of consent, patents, etc, along with source code availability in those same
conditions. The ability to know what you're running is just an added benefit.
''The Web search engine should be regarded as an advanced Web page rather
than a software. It is not SaaS.''
Isn't that like judging a book by it's cover? The web page is just the
graphical front-end to the engine. All the algorithms that find what you're
looking for are not put in the source code of the web page.