Most Escape from Underdark players do not need to hear this, but I've run into this problem enough times that, for the few who do, I submit a gentle reminder:
Death is bad.
Death means the end. It is a door slamming shut, forever. It is a permanent parting of ways. It is the cause of much agony, sadness, and grief. And as if the in-character reasons weren't enough to convince you that death is bad, Escape from Underdark provides one of the most severe respawn penalties on the internet short of full permadeath, and mark you well! Permadeath can and does occur on EfU.
Death is something to be avoided at all costs. Literally, at all costs, because there is no reward in the game that outweighs the jeopardy of your entire inventory, the loss of one third of your experience, and possibly even the total loss of a character.
It therefore stands to reason that if you do something dangerously foolish, like oh, I don't know, run into a room where the mobs outnumber your party ten to one and proceed to hack away at the nearest enemy, that you will be treated, in character, like a dangerous fool. Through the agency of your character, you, as a player, just put the lives of all of your comrades in jeopardy, for absolutely no reason other than to satisfy your itching trigger finger.
Every character has a will to live. This is not mitigated by a low wisdom score, a low intelligence, or an evil disposition. Even the most reckless barbarian or foolhardy paladin will not attack an enemy just because it's there. The same thing that stops you from walking in front of an oncoming truck should keep your characters from attacking everything in sight. It stretches the imagination to the breaking point to consider that a character so foolish and suicidal would have ever made it to Sanctuary in the first place.
In other words, this isn't like any other NWN server where you can just walk around and hack away at anything that is marked as an enemy. If you approach EfU in that way, you run the risk of ruining the game experience of other players, not to mention getting their characters killed in the process. Not only that, but you are cheating yourself out of one of the most challenging, immersive, and engaging NWN experiences out there.
You don't have to be a griefer in order to cause grief. Please, consider the safety of your fellow gamers' characters, not to mention your own, role-play death as if it really meant something, and don't be a Leeroy Jenkins.