Rules are there to make the game fair for everyone, not to annoy the players. If people do not follow the rules, they have an unfair advantage over other players, making it less fun for them.

If you break a rule, you get punished for what you have done but also to learn from your actions and make sure it doesn't happen again. If people keep making the same mistakes, because most people don't do it by accident, don't blame me for reporting you.