I'm not sure I agree about the downvotes. I see it as destroying value by negating other people's positive votes. I don't see why we should be going around and trying to police the platform. Let's just vote for the posts that deserve upvotes and ignore the ones that don't and let the cream rise to the top. If other people upvoted something, who am I to say that they are overrewarded?

As a very separate issue, flagging somebody with more steem power can always lead to negative consequences for the flagger and I don't feel like taking the risk as I've seen much bigger accounts pretty much destroyed by a larger account regularly downvoting them and basically depriving them of all rewards.