That rule was implemented as a result of the issues in Taiga in an attempt to remedy the situation. Going back and reviewing the PMs, there were never any specifications that I saw on who could or could not interrupt – only that two non-members can attempt to have a private conversation in a kingdom, but they cannot guarantee their privacy/secrecy unless they have permission (IC or OOC) from the kingdom’s leader. So the rule hasn’t really changed, it’s been the same since it was first implemented 
Hopefully that makes sense - BQ keeps surprising me with its complex situations, lol. We'll look into clarifying that rule!
Hopefully that makes sense - BQ keeps surprising me with its complex situations, lol. We'll look into clarifying that rule!