Nostalrius Begins - Quality wow vanilla realm (1.12)

Players can interact in a variety of ways, not all of them constructive. You may encounter players that steal resource nodes, chests, items, lead monsters to new areas and summon demons to raise havoc. Nostalrius staff will not intervene in these situations as the community may take measures concerning these players. However, behaviour that is considered to be contrary to the essence of the Game will be considered a violation of this agreement. Such behaviour is considered griefing which includes but are not limited to the following:

Summoning demons at the initial starting zones of new players;
Intentionally killing or disabling important quest NPCs for an extended period of time which exceeds 24 hours.