The scale argument seems fishy to me. If we agree something is harmful and illegal usually scale does not matter. You can be a local drug dealer or a drug cartel and both are illegal. But my Angelina Jolie example was more about the fact that even without Facebook young girls will compare themselves to impossibly good looking women since our entire culture promotes it: do the actresses in Friends look like real life women? No, they are in the top 1% of women (Phoebe a bit less but she is the "funny" one). Anyways if we wanna make this illegal the implications are huge.