Recently I came across a situation where an 85 dk was asking for help on the Guardians of Hyjal: Call of the Ancients quest. To be honest, I didn't initially pay any attention to it as I was in the middle of a quest but then I noticed that people in chat were calling him a troll. The dk then lashed out at everyone in a rather hostile way.
After all this, I tried to help him in a whisper but for some reason he still didn't understand what to do. I guess he was either trolling or simply not trying to understand or bothering to look it up online.
So, my question is very straight-forward: Do you help others in the game? Or do you perhaps call people trolls and continue on your merry way?