@Jascha is looking into it.
This isn’t the technical truth but more your gameplay decision.
The most important thing is that the leader knows exactly what allys he accepts or not (@Firebeard)
In your case with hundreds of faction + ally members this is your responsibility.
For now it is indeed a bit limited to only chat warnings - which were ignored in this case and communication with the guilty guy on Golden Globe not being made.
We will work on a better way to display it on HWS Connect.