~ Animation/Graphic ~
Great basic setup for the graphics. The choice of two different cursors was nice, but really not needed in a game like this. Some things that do make these types of games cool are adding actual animation to it. Perhaps at the end when you get your results you could have a normal whistle and have an animation of the whistle changing to what the person got. Small things like that would make it a bit better.
~ Story/Content ~
I got a gold whistle.
Even though on my account I have a Deity. I would like to argue about some of the examples.
Your helpful reviews were actually terrible. I wouldn't call any of them really helpful at all. Just telling someone to work harder is probably the most useless thing you can say.
Also, as a flash artist those short reviews such as, "I really liked this" can be very helpful to the authors motivation and make them want to keep making flash or encourage them to work harder.
You're examples for abusive reviews were very good and all abusive. I just don't see where you can mark down someones whistle (Yes I know this is just a game) on what is helpful and what is useless because that is completely opinion. Like I said your examples of helpful reviews seemed very mediocre to me. I wouldn't mark them as helpful or useless because they are somewhere in between. I also mark any short review that is praising my submission as helpful because they motivate me to work harder and keep submitting. That's helpful right?
So I say your submission is very opinionated. Just because someone has a different opinion as you they could get a lower whistle. If you were trying to make it like newgrounds then that's not how the whistle works since you don't get any points for marking as helpful or useless, but if you were just making it like that for the sake of the game it's extremely hard to do because like I said again it's very opinionated.
~ Audio ~
The generic song to use for any quiz type game as the one that you had made here. I even have quiz games like this with the same song being used. That being said it's a great choice no matter what in my opinion. Very relaxing while listening to and just sets up a great quiz atmosphere. Kind of one of those songs that you can't really get bored with.
~ Overall ~
Nice presentation, perhaps a bit opinionated like I stressed several times, good choice of audio.
The biggest thing that I think could improve this submission is by making the end more suspenseful by make the normal whistle change into the new whistle and having some suspenseful music while the change is happening. Then a corresponding sound to represent doing a good job or a bad job depending on the whistle.