well I think that's a little too easy. Say, if it was personal and I was the target, could I then so easily shrug it off? While this is the wild west, we have to establish some kind of protocol otherwise it's just a dog eat dog mentality.

Explaining the reason for a downvote would be a start, and also as Dan pointed out zeroing the rewards is very questionable. You definitely have the "right" to downvote whomever you like, but again, downvoting a neutral post (from the example above) with 100% as a whale essentially means to "censor" someone. Just be aware of that