Ah, I see. You mean that users submit and rate strategies. When you mentioned guides, I was thinking of major guides that cover the the entire game. The rating criteria that you suggested wouldn't really work for those.

I am afraid that I wouldn't be very interested in such a website. I like to work out my own battlefield strategies. If I have trouble with a particular battle, I'd discuss it in the forum rather than look for a specific guide (not in the least because it depends on many factors, such as terrain, units, etc.).