Game with hundreds of fake reviews

Why does apple allow this? It means we have games constantly showing up in the App Store because of these high ratings yet anyone who takes a second to look at the review can see they’re fake. And then anyone who spends even five minutes playing the game can see clearly that it’s nothing like the reviews oddly claimed nor is the quality of it deserving of the rating it has because of the fake reviews.

why do they let this happen?