People put way too much stock in numbers when it comes to reviews. I don't know how it all started but anything less than 8 out of 10 or 4 out of 5 is bad according to most people. We might aswell just swap to a 2 point rating system. 1 is bad and 2 is good. That should clear things up.
I completely agree - I've been very tempted over the years to start a site that does reviews like this. When I first thought of it I wanted to call it worthplaying.com but that site already exists.
My life is full of stuff and there are a ton of great games out there. So many, in fact, that the only ones worth playing are the truly great ones. I don't have time for anything less.