I bring this up as a healer and a tank. I will never say I am the best player and for a matter of fact i do not do savage content because i don't need the additional stress and I do not enjoy raiding anymore (i raided in EQ1, EQ2, WoW and other games for 10+ years).

My healer i refuse to play anymore after getting to 80 (scholar) i have also seen my wife who plays a white mage refuse to heal high level dungeons and extreme roulette (she would rather play her dps)

i have had people in my former FC say they hate healing now because of tanks that just rush through dungeon, die, blame the healer and then repeat. i have seen friends say they only bring out their healers if its a friends group.

and last but not least I as a tank refuse to wall to wall pull so i usually try to pick up 2 packs at a time and that's it. And I have had a few (mind very few) where the healer would actually thank me for not pulling big.

So while i know this is a very limited spectrum and anecdotal evidence, i figured i can't be the only one that has had this experience.