-Good aligned characters should not kill good aligned mobs. You have request to get their gear and you lose xp for killing them, so there should be no mechanical reason to kill them either.

-Good aligned characters should avoid killing good aligned PC's. Good aligned PC's fighting to death should be rare. A Fortress member should never kill another good aligned character.

-Good aligned PCs should not mass murder neutral mobs for selfish reasons (ranking, getting coins).

-Neutrals have more leeway, but generally they shouldn't be acting consistently evil. Neutrals are allowed to do evil things, but they should be feeling a bit uneasy about it, enough so that they don't do them frequently.