I like the people who scorn me for not DPSing up to their standard as I heal them through duties. They can slam their face into the keyboard all they want, and keep coming up with more shite to throw at me, but the fact of the matter is they kept me around and I kept them alive.
I haven't been kicked for poor DPS yet, but even if I do get kicked, well, I hope they have a healer friend on deck, or else they just screwed their whole run, assuming it's not a raid where other healers can pick up the slack.
They'd be stuck waiting, and I'd get to join another run almost instantly, because healing is life in the fast lane.