Here are some issues with the argument.
1. 2+2 = 4 and 2+2 can also equal Fish. 3+3 = 6 or 8 and 7+7 = 14 or triangle. A lot of games think outside the box.
2. Essays are subjective but you also give a score to them.
3. The grading scales don't line up. If you give someone a D or an F they have to take the class over again. If you give a game a 5 or 6 those are still considered passable grades. It creates a communication problem.
4. What does God of War getting an 9.2 and Dark Siders getting an 8.9 really mean?
5. Most important issue is... YOUR GUITAR INSTRUCTOR IS NOT GRADING YOUR CHEMISTRY WORK!
However sometimes your sports instructor will be why your 2 paragraph essay will be given an A- by your English teacher no matter how nonsensical your paper was.
1. I agree, which is why game scores have to be different. In school, if you answered 2+2 + Fish, you are wrong. One point off. In games, it means you are creative and innovative.
2. Essays are why I said mostly. However, essays are also assignments expected to follow a certain criteria or objective set forth by the instructor. Game reviewers are not instructors setting forth instructions on essays for a class (or at least we shouldn't be).
3. Exactly. A communication problem. Reviewers know how they grade, readers just assume otherwise. Which is what this whole thing is. But I still don't think games are "graded" or should be put into some sort of scale for something that is graded based on a definitive set of knowledge. We don't have a grading rubric for games (ie If graphics don't meet "this" level, subtract one point). It is entirely subjective.
4. Fortunately PSLS doesn't deal in 9.2 and 8.9s. We go down to the .5 scale. But if you are referring to a comparative rating scale, that's silly. Games are reviewed at different times by different reviewers, so each must be taken based on that information (ie. games that got a 9 five years ago from another reviewer, may get a much lower score now from me). It means that at that time, to that reviewer, that's the rating that was determined.
5. Another point well made, again, which is why we should NOT be rating the same way that schools grade.
If we want to grade games, and go on that scale, then I want a rubric to go off of. I want to know full expectations and right and wrong answers. I don't want anything left to chance. Until I get that however, I am going to continue to rate on a scale in which 5 and 6 means average, nothing significantly new to speak of, but not necessarily bad either.