What if the fake reviews were paid for by a competitor, so they would get banned?
I mean, we are talking about the same company that just a few years back subjected all iPhone developers to such a strict NDA that they were technically not allowed to discuss a WWDC panel they were watching with the person sitting next to them.
Edit: Seriously, what question can I ask? This sounds like a fun brainteaser, like the one where half of the people on an island are liars and half are truth-tellers, and the explorer has to figure out which fork in the road leads to the village. If there's an answer, I'd genuinely like to hear it. Downvoting me is just a way to shrug your shoulders and admit your bluff has been called.