Soon after the Asian tsunami, there was a major concert at Dam Square to raise money for the victims. (Click here for the movie, which is 6.4 Megabytes and in Quicktime format.) It was flashy and on the whole tasteless, perhaps, but it did raise awareness and money for the problem. It’s difficult, therefore, to find fault with those who carried it out.
Stories of how people in over-regulated places tend to let loose abound, and perhaps the Netherlands is no different in that respect. Whatever the reason, at events like this, there are no rules, and it can be annoying as much as pleasant.