What's the deal with the sparkly fists?

I was skating around Wells Fargo Center during the game tonight and I couldn't see the puck because of the glare from all the sparkly fists. It was so difficult to see I nearly knocked a puck into my own goal and cost my team the game. As it was, I turned the puck over in overtime and the Flyers won. Before heading to the locker room I caught a glimpse of the Cookie Monster shaking her sparkly fist at me in hatred. Stupid Philly phans.