If the policy has changed, then we need to know exactly how and when it is going to be enforced. It also needs to be enforced in a consistent and fair manner, with a proper appeal system in place.

A player can invest a considerable amount of time, effort and energy into the game. That isn't something that should be taken away lightly. If an account is otherwise clean and the act itself isn't something extremely terrible then it baffles me that the default approach isn't simply a verbal warning.