Your post is pretty condescending of this player. Yes he is bad for not avoiding aoes and not doing job quests. Did you talk to him? Did you ask if he even knew about it or did you just clap your hands and said "This player is dumb go away!"

I have never expected anyone to look up strats for a dungeon. It's ridiculous. All of the dungeons are so easy to explain you don't and shouldn't need to read a guide to do queue up for them.

This is ridiculous. I think it's more shameful that you couldn't take 30 seconds to explain cutter's cry. It's simple to do so.