Well, I understand your frustration and I'm the type that asks if people know the fight before we rush in, but... I feel like you are dumping the responsibility on others when you can easily do the work yourself. You can type "Sunken Temple FFXIV" into google and you will get a quick run down of strategies. You can always be the person doing the explaining, not just the one who expects to be told. It's not like I've never been new to a dungeon before, but I always familiarize myself with the core techniques before queuing to show respect to those who already know the fights.