Uh, what. Let people do what they want. People drop 10s on games when it isn't warranted all the time. I don't know why you're starting a crusade against low scores in a topic where the average score for a game is already well above 7, despite the rules saying "I'd prefer if 5 were an average rather than 7."
Just leave 0s as they are.
8.5 for KH2
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No problem!
This is a cute and pop genocide of love!