OK, let's say I'm hanging around SW and I see in the Local Defense chat that "Stormwind is under attack".

From what I understand, that means I can go after the attacker and that he/she is fair game. For anyone around, no matter how many Allies there are.

But, I have questions.

It's been stated in the "Ganked by Pandomenium (sic)" thread below (http://www.kpsforum.com/den-mmo-serv...ndomenium.html) that pursuing a flagged PVPer off the Arena floor is considered ganking and is a condemnable offense...

So, to avoid any possible problems, when exactly does pursuing the attacker of a city become ganking? At what point? How far can I go?

Is it the second he stops attacking NPCs? The second he's out of NPC aggro range? The second he changes zones? Or can I chase the invader all the way to Stonard and keep attacking until his pvp flag wears off?