It doesn't help the team one damn bit, the management knows people don't like Jack. But going and Booing Jack a member of this team for nothing he is doing on the court at that moment(Whether or not that helps a player is debatable) is just moronic. It doesn't make the team better.
I really feel people who go to games with a predetermined plan of booing one of their own players are like one of the worst fans. I don't like JO or Jamaal but I still cheer for them when I go to a game. And until they are traded, or sign with another team I will continue to not boo them, and screw with thier head, hurting the team.