I'm getting pretty sick of being a good healer in a sea of stupid DPS and bad tanks. When the stars align and I get a random with a smart tank and DPS we can farm away and do any heroic with ease. Then I have groups like yesterday, heroic BRC(Blackrock Caverns) first boss. Shaman and priest eat the Skullcracker attack from the boss after chains of woe is broken. Type "...sigh" in chat panel, tank replies with "No you didn't heal them through the smash" so he's already trying to accuse me of being bad when the mechanic is to break chains and run, skullcracker will one shot a tank with 160K no "Healing through it" about it. Anyways, wrist drop off the boss and the enhancement shaman rolled need on them as well as me as "Punishment" because I let them die and told them they were wrong for not moving and he won them.
These people are called Wrath-babies. In Wrath that was how it was, you just ran through [censored] while the healer used his infinite mana pool to heal everything, in short, it was terrible.
Cata turned WoW back into what it was supposed to be, unfortunately a lot of people suffer from Wrath-Syndrome (Also known as stupidity) and can't come to terms with this "new" (not really) direction. Some of the ones that started with Wrath are willing to learn and improve, most are just morons or entitled children who want everything handed to them on an epic plate.