I mean if we suspect someone has been trafficked we need an alert and a decision to inform in order to rescue them and or go for the traffickers?
Not to make light of your serious suggestion HP but based on this thread I thought you meant a traffic light system for opening links.
Green = Basic minger & ok to click
Amber = Damn ugly but ok to click if you haven't eaten for the last few hours
Red = Hideously puke inducing & only the brave should click