When the value for a chest drops to zero, it tells you 'Everything of value has been stripped from this chest'.

Chest loot is lowered by one step each time you loot it in a 7 day window.Keep in mind, it ONLY assigns loot to those who are in this new special list (that we generate via OgreBotAPI:Loot_SmartAssign_Add). The loot order that is used, is the person doing the looting first, then the order of the group (aka, who joined the group first).