I think it's rated exactly what it should be...
A movie like this will always be a miss for quite a few people; it's expected. But for those of us who enjoyed it, it was a refreshing break from the norm. I came to this movies page to rate it a solid 7, and it's sitting almost right where I think it should be. It's not great, but it's certainly more enjoyable than the average comedy these days. (In my opinion!)
What I don't understand is the hate from both sides. If you liked it, fine. If you didn't like it, fine. There is absolutely no reason to start insulting one another. It's kind of like dumping a drink over someone's head because they didn't like your favorite entree.