Not sure what you're getting at since if I had my way we'd have no DOWNVOTE and the FLAG would pop up three choices for which it could be used. Plagiarism, Spam, or Abuse, and possibly a way to specify FALSE FLAG. If it is a false flag perhaps it could alert the witnesses and they'd have the ability to remove it, and ding the reputation of the person doing the FALSE FLAG.
So I believe it could be virtually eliminated.