I search for this but I couldn't find anything about it. On the reputation tab you can click the go to war button with the kurenai. You are allowed to attack the kurenai at telaar under the kurenai faction. When you attack the pvp kurenai you be come pvp but it does not affect the way they attack you. You don't draw agro from anyone unless you attack a person near guards. You don't lose any rep and u can make make all those mid 60s mad. They usually think horde is raiding the town.