As someone who plays tank, every group wants something different of you. Big Pulls, small pulls, etc. I love tanking but I am not going to even bother queueing as tank if I don't feel like dealing with people pulling for me, dps not managing threat, or people wanting me to go at a pace I just don't feel comfortable with. There are days I love large pulls, but then there are days I just want to relax and not pull big. Those days I won't tank, so I am one less tank filling the queue.
