I could not agree more. I was moving around the country when Cata came out, and when I could play again a month after release, my ICC geared Druid tank was left in the dust. I did not know any of the encounters, did not have good gear, and really did not want to hear from people whining about me being a "noob" because real life had kept me from leveling the same time most people were.

I have run the gamut on tanking. I have been called a noob and been thrown out of PUGs and I have main tanked ICC. I have even tanked a couple raids in Cata (I'm completely casual now) and I have run all of the dungeons, but I still don't want that tanking mantle back in randoms. Why? Because I don't need the added stress and conflict in my life put created by rude players. I have every role in the game with multiple classes, and my experience is that people expect next to nothing from DPS, for heals to keep them alive, and for tanks to be their personal menservants, running the instance in the way they see fit.

Please note that this is by no means a universal truth. Most groups are downright decent people who all just want to have a little fun. But the fear of just how much the jerks turn one of my hobbies into a chore makes me fine with just queuing up DPS and putting up with the wait.

Oh, and for everyone saying deduct for somebody with Resil on their gear, I'll grab pieces of PVP to gear up my Druid, and sometimes there simply are not better pieces outside of raiding.