As stupid as it is, the bot are to be blamed.
In fact, am really tired and bewildered when it comes to who really is to blame. The bots helps promote post and that doesn't mean people should upvote the posts. Just like this post, it's been promoted using bit bots otherwise, we wouldn't see it.
But if you don't like a post, it should be completely ignored instead of flagging because I have seen and noticing so many persons having time to downvote but have not time to upvote, that rubbish. As long as people cannot post freely here without getting flagged or Downvoted, there will still be a fundamental problem.
If flagging should not be completely removed, it can be censored to for every user with a certain reputation and above to have same downvoting Power no matter your steem Power. And no account should have the ability to Downvote more than twice in 6days. That will help