I don't want to find out what sort of vampire I am, nor do I need to know that I look most like Ashton Kutcher, I already know my star sign. There is no need for a Super Wall, when there is already a fully functional wall.
I like the idea of receiving gifts from people, but prefer actual things I can eat, drink, shag, etc. Not cutesy clip-art of a cup of coffee or a diseased spleen or whatever.
So when you next have a list of all your friends who you're inviting to share the joy of your latest FB app, please DON'T hit invite all.
I'll find my own apps, useful ones... :)