Great post! I was kinda thinking about that the other day an wondering if that would become an issue at some point. It would really be great to incorporate a way to downvote things but not affect the reputation of the person and their credibility as a content creator. The whole thing I like about steemit and d.tube is that its decentralized and people cant force there moral on others and censor things just because they don't agree or pushes there political agenda -cough youtube cough - Knowledge should not be censored because some are sensitive to it or they just dont want to hear it.