Oracles as they affect SMTs Rewards Pools are only here to answer a simple question: Did the entity behind this account perform action X, or X+Y, or X+Y+N? If yes, publish the account on the Oracle's feed.

I think there is room for Oracles to be able to be more nuanced and even dictate the reward-shares of posts and users.

For example — custom reputation computations are a great use case for Oracles. These computations can be complex, but based completely on the data from the Steem blockchain and easily audited using Merkle Proofs. Such reputation systems can be used in conjunction with staked SMTs to determine post and curation rewards. This opens up a door to a whole range of possible combinations that have the potential solve a variety of reward distribution challenges.

Possible applications — prediction market for posts! Such a market could be designed to reward the great content posted by unknown/new users and limit rewards for automated voting on whale posts.

Reputation systems can also enable gradual penalties for voting rings and Sybil-like behavior.