Clarification On Non-Blizzlike Policy Of Nostalrius

Hi, I'm asking for clarification on the custom rule that was recently implemented due to a large volume of complaints coming from the lower-level playerbase about mistreatment from higher level opposite-faction players.
The rule I'm speaking of is the one which states that killing quest NPCs will result in a ban or suspension of the account involved.
I've been told from one source that simply killing quest NPCs will earn me a ban, and from another, that I simply can't kill stay at a quest hub for too long.
Can I have some clarification on how you intend to supervise this new and custom rule? How long can I stay at one place? On the retail servers, for the last 11 years for tens of millions of players, this has never been a rule that's existed, so I don't really have any idea how this will precisely be. Please share with me (and us) how you intend to enforce your new policy.
The rule I'm speaking of is the one which states that killing quest NPCs will result in a ban or suspension of the account involved.
I've been told from one source that simply killing quest NPCs will earn me a ban, and from another, that I simply can't kill stay at a quest hub for too long.
Can I have some clarification on how you intend to supervise this new and custom rule? How long can I stay at one place? On the retail servers, for the last 11 years for tens of millions of players, this has never been a rule that's existed, so I don't really have any idea how this will precisely be. Please share with me (and us) how you intend to enforce your new policy.