FYI sometimes you want the ragequitters gone. I was running Titan HM, dude rage quit and then 5 other people followed. We were at 30% echo and not getting past the heart phase. The tank was blaming everyone and he was the first one gone. The dungeon filled backup and we were short one healer. New tank, you can solo heal this. Then we one shot cleared it with the new group. Let people stumble on their egos. Patience will always persevere.