Remember it's a miracle that a decentralized platform like Hive works at all. Back in the Steem days, when downvotes would lower the rewards for the downvoters too, there wasn't just a little bit of spam. Low-effort posts with semi-automated coin analyses would regularly reach the top of the trending page, thanks to the upvotes of one whale. There were also services that sold upvotes to minnows who wanted to play the same game.