I'm not going to read it but I find a 6/10 more convincing than the endless parade of >9/10.
As I see it reviewers should only touch 9 when they are absolutely convinced that what they are reviewing is about to make a significant impact in human culture as a whole and the final 10th point should only be awarded by 'history'.

Then again giving scores like the reviewer is some sort of school teacher is just dumb.