There's still a lot of discussion of this in the political discourse here in Norway, in fact I'd argue it's become increasingly more discussed as social media have taken over. Just recently, a law was passed requiring advertising that is edited to significantly change the physical appearance of people, to marked as such. One of the most common practices is editing to make a model's boobs look bigger, or her figure more hourglass-like. Removing skin blemishes is another. Details in the requirements are being ironed out right now, but I think this is a good example of a fairly simple regulation that should help improve things. It will become too expensive to try to do this kind of editing within the limits due to red tape, and the practice should go away almost completely in time. There's a lot more to be done in the ad, modelling, cosmetics, fashion, entertainment and tech(social media) industries to combat this though. But this kind of photoshopping practice is very harmful because it serves to amplify all of the other harmful signalling.