We used to allow people to grief inside of claims with the motto "Well, you should've had added the griefer int he first place".
We decided this wasn't the way to go anymore so we added a new rule which makes griefing inside of claims banable. We did this because we don't want people to grief inside of the claims of their "friends".
Please still be carefull with whom you add, since it will take admins a long time to check and restore griefed property. And we won't keep rolling back areas if you get griefed multiple times by your own mistakes.
Have a nice day