It should be illegal to advertise in any way that shows any evidence of manipulative or misleading intent. That includes essentially 100% of the "tricks of the

It should be illegal to advertise in any way that shows any evidence of manipulative or misleading intent. That includes essentially 100% of the "tricks of the trade" and the entire contribution of psychology to advertising. Pure information should still be permitted. And with that limitation, targeting in a way that doesn't show manipulative intent is likely harmless.