Here is a questions I've been arguing with myself about @acidyo : If I understand it correctly the only way that community accounts keep track of admins and moderators and such is through a custom json operation correct? So when the client opens and a community is accessed then the client has to trace back across the blockchain to find all those custom json operations to find out if the user has some form of special access to the community. So what is done to mitigate that taking longer and longer the older the data is on the chain? Or some other method that information is stored as well?