Ok, I saw this float through and thought it might be wonderful for a larger site I run so wanted to test it on a family site to gauge results.
A a test, I typed in http://www.cooney.com.au/miracle-wrinkle-cream to see if it found a recent public service post I did at http://www.cooney.com.au/the-big-miracle-wrinkle-cream-ripoff
I just returned a 404 so I'm guessing I don't fully understand to intended purposes or algorithm being used. I wasn't able to find any settings either so I'm also guessing there isn't any.
Great concept though.