Why Speed Pulls?

[Sareal]

Seriously is like 90% of the game's player base in a hurry? I queue for dungeons as tank and I more often get groups who pressure me to pull the entire instance in 1 pull. It's annoying, I am not a hurry, why is everyone in a hurry? and most of all why should I comply?

Edit: Guys if I was looking for a solution I would have stopped at the first response because it was a solution in itself. However I don't completely agree with it and anyway I already stated my own solutions for dealing with the problem. I'm simply trying to get what is on your mind on paper, I wouldn't follow up with questions and comparing your opinions with mine if I didn't. Take this as you will.