You're making a good point. We have to remember that rules about cheating are effectively social agreements within a group of people. If the majority of the peo

You're making a good point. We have to remember that rules about cheating are effectively social agreements within a group of people. If the majority of the people within that group don't (anymore) agree with the rule, for all intents and purposes it's no longer a rule -- even if it might nominally be stated somewhere as one. Culture and social arrangements evolve implicitly at first, and are only later encoded. Of course, the modern homo bureaucraticus might do well to be reminded of this.