the system allows powerful stakeholders to easily target and abuse others simply because they don't like them or don't like their ideas

I think @smooth once mentioned a solution where a downvote would only penalize the rewards of the last accounts that voted on said post along with author rewards. I wonder how feasible that would be now with linear curve and if you've thought about that one before.

A simple example:

A post has 3 voters and currently at $40 rewards.
Voter A has voted it for $20, Voter B has voted it for $10 and voter C has voted it for $10 in that order.
Voter D comes in and downvotes it for $15. Author received $40-$15 /2 at payout.
Voter C gets 0 curation rewards, Voter B gets 50% curation rewards and voter A gets 100% of curation rewards.