More often people who have a rating in the range of 50-66 and overpriced self-confidence, dare to enjoy or trolling a downvote.
I will stay with my opinion: People should have a partial character to this, as the first detection is "tumor", and then let the bots and the system make decisions.
There is no system other than the users and our decisions. What would prevent someone from just creating flag bots to downvote everything but their own content?
Block him, improve security and the best option to remove the flag - permanently.
Open source code is a big project problem, although it was said that this contributes to the growth of popularity (I do not see popularity).
In general, the project is not finalized, they it can change something for the better!