My idea on this topic: If your group is over 80% health 90% of the time and not under 40% health unless tank didn't pop a CD or DPS is standing in stuff, DPS to your hearts content. No one should be chastising you for DPS when no one is below 80% for a good amount of time. If people are above 80% and never drop below and you have spare GCDs and not running low on mana, a DOT or two up.
