New Player Etiquette

[Gwenkatsu]

Ima be honest. By the time you're almost in ew i'd expect you to know how to play the game.

But still there are people that just don't get it.
To the day I remember that Perfect Legend healer in Vanguard i guess. As soon as the dungeon started, they started running and pulled everything. When the tank was done typing "first time", the Perfect Legend had already died gracefully on the next wall.
You would think that with level 100 this guy should have learned the very basic fact not to pull while the tank is not even moving, but no.

Or maybe there is an achievement for the title Perfect Fool that I'm not aware of? In this case I stand corrected