(Fans can bring ear plugs) should not have to endure possible permanent (yes permanent) hearing loss because the fans are screaming too loud.
I also think its unfair a team gets 6 false start penalties because of crowd noise.
If a decibel level goes above a certain level, there should be a warning. Aftet that, 5 yard penalty to the offending fan's team, then a 10 yard penalty, and so on.