The Reward DAO was designed to utilize 4 different types of tokens to indicate different types of contribution. Communications, Social Coding, dApp, and Governance indicated the different kinds of contributions that people made in the DAO. The shortcoming of this reward system was that everyone could randomly distribute tokens to one another to show their appreciation, and there was no standard measure. One person might give 4 tokens and someone else might give 400, so the moderators needed to normalize that. The result of the experiment was that Commons Stack is back to 1 form of reputation.