delegation, linear rewards curve, and 10-vote daily target protocols
None of these actually matter much, they just shift around the methods that milkers will use but with automation, vote selling, reward-sharing schemes, etc. this was always going to turn out badly.
The only rule set remotely likely the voted content rewarding model that we have (as opposed to other completely different models like paid boosting) that has a shadow of a chance to work has significantly higher curation and cheaper/free downvotes.
RE: Steemit Update: HF21 Testnet, SPS, EIP, Rewards API, SMTs!