There is a rule for the first instance of the violation. The law applies to all instances of the violation, first, last and everything in between. The thing is

There is a rule for the first instance of the violation. The law applies to all instances of the violation, first, last and everything in between. The thing is the reason why a lot of people are ok with this art thing is because it's not just the first instance of it, but because it's currently quite interesting and tasteful. These are vague qualitative aspects that are hard to define with law and will change over time. Better to have a simple law everyone can understand and agree on then to find some perfect law that fits with our complicated, blurry and inconsistent definition of morality. The more complicated a set of laws are the more likely people will be able to find loop holes to exploit.