I would assume that to counter the junk/spam/wrong information that would develop (even unintentionally) about a topic you would have to combine this with a "tr

I would assume that to counter the junk/spam/wrong information that would develop (even unintentionally) about a topic you would have to combine this with a "trust" ranking like PageRank. Basically, only more mainstream sites have the right to present different views which leads you back to square one: Repeating information.