> I've been at a job where we did this with Google. We had about 20 websites and 40 ad campaigns on adwords for fake companies where you could buy used dirty dishes. We wanted a topic that would have zero real-world results aside from us so we could easily compare our hypotheses and someone suggested pre-dirtied dishes. It was hilarious and had almost no search results so we went with that.

But... is that manipulation or genuine optimization? I mean, if there were people who wanted dirty dishes, and you were selling them, then helping Google help dirty-dish searchers find you is making Google better (and overall making the world a better place).

SEO is a problem when it causes mediocre, crappy, or completely irrelevant sites to be promoted over actually good sites.