That is to say, what about the people who didn't buy and play the game because they evaluated it and decided they did not like it? They are absolutely a 'no' vote on the game, but don't get "counted" anywhere.
Nah. I don't think that people who haven't even played a game get to have a vote on whether or not it's good. A restaurant reviewer doesn't get to review restaurants they haven't eaten at. A film reviewer doesn't get to review films they haven't seen.
