So first I would like to state, during areas with high mob density and/or high damage mobs, a WHM at the very least should ALWAYS be ensuring their HoT's (Heal over time) effects are active, as this is central to maximizing the abilities of your class. What you are asking is that people not ensure they are maintaining a high healing output? A healer's job first and foremost is ensuring that they are maximizing their recovery output while simultaneously refraining from pulling aggro away from the tank. common sense. However, that's not what you are asking here. You are trying to tell people how to use their class when obviously you have yet to understand how to maximize the capacity of said class. Please be better informed the next time you post ragging on healers.