I already explained more than once the reason for flagging, it's even in one of the four recommended points when you click the button, it's not because I don't agree with you, obviously. And a flag or downvote is just the opposite of a upvote, if it exists it is my right to use it if I do deem it fit when the post so entails.
No, it's not me who decided but, once again, the ideas are all out there, the proof/evidence as well, including on Steemit if you bother to look