If human history tells us one thing it is that we are not above anyone. Your standards should never be imposed upon anyone else no matter what you think of them. It is arrogant and ignorant to think that in a random chance encounter (DF) that people should conform to you.

People learn in different ways, at different times, and most of all, they learn better by experience than by being told what to do. Let them experience dying for pulling mobs before the tank does even if you tell them. Let it sink in without you wasting your time typing. Growth by experience is better than growth by forceful talk.

If the forum administrators/moderators are reading this. Please consider making a ban against Duty Finder complaint threads. It poisons the game, and poison is the last thing this game needs.
An atmosphere of hatred towards each other isn't the way to solve things.

What I would like to see is suggestions for DF options. Solutions are better than complaints.