This is a great comment, and definitely addresses that two-sides-of-the-same-coin issue that we face around down-votes.
Between the 4-5 people with millions of stake, more than happy to zero out accounts and hide posts with dozens of real comments... and the thousands of people with not enough stake to matter, or who are still traumatized (mildly joking) from the previous whale wars and flag wars on Steem... it's a mess out there.
And to the ones not downvoting at all, do not be afraid to throw a small DV out there, even if it's a fraction of a penny; it just allows us to get to a place where we can have full curation which involves negative curation IE downvotes. That helps everyone on Hive.
The problem here is (from what I've seen in the past), down-voting anything that hasn't already been approved by hivewatchers or steemcleaners is a good way for someone to get on the radar of those DV-Whales, and have their account zero'd out because of it, and/or having the posts & comments of people they support attacked, if they don't have their own content to be downvoted.
I stopped using the DVs on tribesteemup because of that simple fact: I was only downvoting actual shitposts/spam, but because some folks with stake didn't like it (haejin at that point I believe), they zero'd out dozens of posts from as many people, just because tribesteemup had voted on them.