Is a Reddit downvote also censorship? No. Any system of voting can be abused. That is why I distrust democracy as much as oligarchy and monarchy. But despite the flaws, I think our system can work. The blockchain is supposed to be immutable regardless of votes, after all. But yes, downvote abuse has been an issue since long before HIVE forked from STEEM.
RE: A Balance On Hive That Serves Everyone! Feel Good & Optimise Investor ROI Without Crushing Community Sentiment & Good Will.