First rule of #Hive: stakeholders shall do with their stake however they please. If you find innerhive to be offensive, mute him.
With this said: in order to police the reward pool and keep bad actors out, downvotes are needed. They are obviously a very bad UX; creating negative emotions in the person receiving them, due to essentially having the feeling of "money taken away", even though this is only theoretical since voting is practically a "bidding" of sorts, where stakeholders vote/downvote to determine how much a contribution should be rewarded for.
Personally, I don't think this system will help in any way the mass-adoption of Hive, neither will giving tokens away for free to "bad-content". Hence why I think the reward-logic HAS to be reworked, where stakeholders can decide for themselves who/what they support, without taking from a "global reward pool" and without having to explain themselves to others why they rewarded xyz.