Oh man, this is too easy...
Now name a game that doesn't REQUIRE you to register on their freakin' web page before you can even log in to the game!! I attemped to try and play AA once. I downloaded it, ran it. OH WHATS THIS!? You have to register in order to play? Can't you do this through the game? NO!
I tried jumping through the hoops to create an account, and you know what? I never did get my own account after I followed the steps to do so. You can bet I promptly deleted that crippled piece of trash after that experience.
Don't ask me why the registration form didn't work, but I tried it a few times (hey, I wasted several hundred megs of download time getting it), and it didn't work a single time.