Given the way that the ranking system of BGG is made at the moment, even a rating of 6 is a boost in ranking for a game with few votes. I think it is cleverly designed, in a way.

This is why I celebrate some sixes coming in for Hungry Monkey. It means that people see the game. They don't love it and they don't hate it. It's ok for them. But they help the game be seen by more gamers since they rate it and move it upward in the ranking.