Sir Paul has the world's attention, and if he spoke out about it, it would raise a lot more awareness of this issue and perhaps shame a few promoters into cleaning up their act. Not on moral grounds but out of preserving their image - which they might need to increasingly do if more people start pointing fingers of blame at them. Nobody likes to be embarrassed. (Asking hungry musicians to refuse gigs is living in cloud cuckoo land. There'll always be somebody...)

Though this is a common and much-lamented problem among working musicians, how many non-musos are alerted to it? People can't condemn practices they know nothing about. Paul was once scrabbling around for gigs too, and he knows what it's like. Now he's a major voice in the music scene. If he took this on board, I think people would pay attention, and it's these things that make him a good choice. I would love for this video to go viral. Maybe it will. Maybe it has.