Well here is the point.
The whistling is annoying and is done often enough where people enjoying the show have noticed. Several people in this thread have expressed that.
If it doesn\'t annoy you thats cool but it does annoy some. No one is asking anything huge here. I think saying hey man would you mind not whistling so much I am trying to hear the band is a big deal. It is one thing when it is some random person at a show. It is an entirely different matter when the person is a die hard fan.