Seriously.. What have you done to the spawn rates of mobs? 1k people in same zone grinding same quests and there is absolutely zero monsters to kill... People are still leveling, not everyone is 70. Even 70's need to kill the same monsters / grab the quest items if they are doing the quests for gold etc.
I really do hope you bring the spawn timers back to what it was so you really dont need to camp one damn quest item for 1hour or kill 12 monsters..
I've notice that too on my two go around while leveling. It seems to have slowed down... this is good new for the server that it is still very active. They should up the spawn rate for some mobs.