I was just saying that's the way the math works out. It's not an arbitrary decision, it just happens that the natural way to score probabilities allows negative

I was just saying that's the way the math works out. It's not an arbitrary decision, it just happens that the natural way to score probabilities allows negative infinity from a single question. You could make an arbitrary scoring metric that does whatever you want. But it wouldn't be principled, or have nice mathematical properties like this.