Yes, we do make mistakes. We are not flawless AI.
As you see from angry posts and attacks, we get "supervised" all the time.

We have received tens of posts similar to yours.

We do not blacklist new users unless the account is obviously created by a spammer like this one for example
@fbadsstrategy

If there is abuse found we leave a comment on the post. Sometimes rewards are removed for abusive posts.

Yes, we do face negativity all the time. There are dozens of users who unleashed trolling campaigns. Usually caught abusers or jealous Hiveiains. We do have not the time energy, and often the willingness to face it so disinformation keeps being perpetuated, left unchecked and growing everywhere.