This sounds like an inverse information measure -- ranking sites highly based on their redundancy (repeated content). And the people who are in the business of

This sounds like an inverse information measure -- ranking sites highly based on their redundancy (repeated content). And the people who are in the business of repeating their content in ever more inventive and adaptive ways are advertisers. So over time this seems likely to devolve into promoting the adverts and infomercials ahead of the content. For instance rather than farming links, the spammers would switch to farming quotes or paraphrases. Expect "one weird trick..." to turn up a lot outside of just the advertising box, and the battle to be how then to stop the algorithms from classing it as truthy.