That would be a pity, because many people love to shoot stills at gigs as a hobby and they would think twice about attending if all cameras were banned. I know I will if that ever happens here, but I'm lucky we don't have this issue to bother us yet here in Europe.
I'm just curious, but why is bootlegging an issue in the US? I seems to me that overall putting up a festival over there is fighting the windmills and I really appreciate your work, even I have never attended PP. Maybe comes a day...
In Europe it is simple, because there is no significant market for self-made video bootlegs, every clip goes to web in minutes and nobody makes money of it. Hence the bands accept the status quo and stay more concerned about the real problem: illegal up- and downloading and actual pirated hard copy CDs flooding from former east european countries, China and Russia. That really hurt the bands' income, but what can be done, there is no real means to enforce the russkies *sigh*