I have a question though, if leader forgets to set ML and someone ninja an item just to sell it to who ever needs it, is it leaders fault or the person who actually need rolls it? Could also apply for raids that's set to group loot.
Because I do lead early patch raids like Naxxramas, Ulduar, EoE, Onyxia etc, and I set group loot sometimes and explain if they ninja they get kick, still some people wisper me that's it's my fault and I will get banned if someone else ninja.
I am pretty active on forums and rules but I have a vague memory that this was discussed some time ago.