"Major League Baseball has issued no edicts regarding Bonds, and each team has discretion regarding signage and fan behavior, said spokesman Pat Courtney. As Bonds has closed in on the record, security officials for Major League Baseball have held conference calls with teams hosting the Giants to discuss potential problems, Courtney said, but the teams deal with cases on an individual basis."
Fans should speak out against MLB for not doing enough to protect the game from cheaters like Bonds. For teams to join in the effort to silence dissent is inexcusable.
I'm a fan of professional sports, and I've paid for my enjoyment of those properties. If those organizations (who have a monopoly on the product) can't find ways to provide an uncontaminated or fair product with those vast riches that they receive from fans, then I think it's right for fans and their representatives to hold the organizations accountable.