For me it is pretty simple. A review should be correct in every way and ppl should decide for themselfs if they only read the conclusion or the whole review. Either way it should represent something. When the reviewer doesn't give any value to his "number" just don't mention it. In the time I went to school and I got a 9,7 for something it meant I was close to perfect except for a very small flaw. I read stuff in this review that can't be named a very small flaw... concidering the whole picture (price, top-end hardware etc...).
Enough said from my part. Not my website and when not open for any comments, I don't mind.