That's not what I said at all...I was saying their costs were higher as a result. They detuned it to reduce the number of low quality sites appearing in Google search results. I am speculating on one particular side effect that had. I have no proof, because only Google would have the data needed to prove that.
Interestingly Google Search results have degraded heavily over the years, and for many topics almost entirely consist of bullshit SEO sites and arbitrary-keyword-generation sites (http://foo-shit.com/freude-des-schadens = automatically generated page about "freude-des-schadens").
I put this down partly to the "freshness" algorithm. You get shown the most appalling crap on the grounds that it appeared within the past few hours.
If you're a share cropper in the news blogosphere, it's stupid to spend an hour checking facts or making phone calls because then you'll be 50th to post. Post any old crap and you reap the financial rewards of "freshness".
I exaggerate only slightly....
Ah, thanks. Sorry I misunderstood what you'd written.