Really? I thought it was kinda funny and worth sharing. Not necessarily something I'd consider SEO spam.
Will they archieve http://xkcd.com/810/ ?
They do look like a low bar, though.
And I dislike the way I can't trust Google anymore as a result - how long until someone breaks the arms race between Google and the SEOs? or are we doomed? Should I try DuckDuckGo or another alternative?.