This makes sense. For me, the main problem of Google is trying to retrieve a treasure out of garbage. While the Internet has a lot of good information, much (most) of it is incorrect -- sometimes on purpose as you suggest. I would be much more interested in a learning system that is able to retrieve information from authoritative sources such as books, for example.
And of course authors and publishers will try to game this. Spam is an AI-complete problem, you'll need a system groking human values and making judgement calls to filter out spam perfectly.
