http://us.battle.net/wow/en/forum/topic/6413023416
http://wow.joystiq.com/2013/04/08/wh...-tank-or-heal/
http://forums.riftgame.com/game-disc...ack-tanks.html
http://tera-forums.enmasse.com/forum...me-lacks-tanks
http://www.gamefaqs.com/boards/67805...eborn/68405548

Swtor is under maintenance, but they have similar threads.

I avoid this issue by letting bad dps/healers die when they run ahead and pull.