Flagging was directly created to deal with people abusing their stake. It's in the whitepaper. People have as much of a right to curate things as no value or negative value as they do to curate things as valuable. If you think that ignoring or muting abusive content such as FUD is sensible, next time some violation occurs to you or your loved ones I expect you to ignore it also, so that especially when people flag FUD you ignore them, regardless if you considered it FUD or not, else you have no right to ask people do what you yourself failed at doing.