This simply isn't needed, and if it is it can be done by a charity or any group of people, not something that should be built into the infrastructure of the web itself.

You have to remember that while the little that the web provides is also its strongest attraction; it allows the web to be accessed and modified by anyone, they're on little bit of the web can be very different from someone elses.

So by adding on a way that the web must be indexed is kind of like moving closer to communism than liberalism. I guess if we start dictating to google where to get their data then we've moved to the full blown hammer and sickle stage :).