When I tank I say lb as newish dps are unsure if they should do it or not and then no one ends up using it and it goes to waste. Im not giving orders, im just informing them that they can use it.

As for light farm, people shouldn't be doing that in duty finder, if your talking about joining a light farming party in party finder and they rush in without explaining anything, they shouldnt have to since its a farming party, everyone should already know what to do.