I think not. LOL!
wdym?
people with the highest number of ratings are not on the top rankings, so the rate for rate spamming strategy didn't work.
I guess it worked in the sense that those games got more ratings. Of course they shouldn't get 5 star ratings all around, that wouldn't be fair. So yes, it does work, but only for getting more ratings, not to get a higher ranking.
What could work is giving and getting good feedbacks