I'm not worried about the rating in itself, but with this breach. I've seen rating on other people's games so I do think it's taken in consideration somehow and letting people rate games they didn't buy or played is a huge exploit for idiots like this one.
Viewing post in Rating a game without playing
I think that as long as the developer has at least the right to reply back or report such cases, it shouldn't be a problem. Or something to disencourage someone to just go on a mass spree of 1 star reviewing soccer games just because he doesn't like soccer.
Well, anarchy is fine too, playstore is like this. I just wanted to know if that was really possible and if there was really no way to appeal against such cases.