I'd say most sites use a 1-7 scale only for European games. And it's sometimes hilarious to see the reviews trying way too hard to find flaws in an otherwise great game.
For example, read The Path review Brother None posted - most categories are like "I don't know how to rate this, so I'll give it a low score".
As another example, Outcry got a 4/10 on Gamespot, even though it is a unique, brilliant classic point-and-click adventure games, and definitely the best in the genre in 2008. It got 3 points off because it made you think. Another three because it's not made in USA. IGN gave it a "near-perfect" 6.8, and the scores for the graphics, presentation, and sound were below 8, even though they were highly complimented in the "review".
For example, read The Path review Brother None posted - most categories are like "I don't know how to rate this, so I'll give it a low score".
As another example, Outcry got a 4/10 on Gamespot, even though it is a unique, brilliant classic point-and-click adventure games, and definitely the best in the genre in 2008. It got 3 points off because it made you think. Another three because it's not made in USA. IGN gave it a "near-perfect" 6.8, and the scores for the graphics, presentation, and sound were below 8, even though they were highly complimented in the "review".