Adult sees an advertisement for McDonald's Healthy Salad. Kid points to it and wants to go to McDonalds. Parent likes that kid responded to ad for salad.
But the kid was really responding to an ad for deep fried processed chicken and potato.
But the kid was really responding to an ad for deep fried processed chicken and potato.
I wouldn't be so sure. Advertisement industry uses a lot of tricks that are not really different from this one. Some people don't like them but most people don't notice or don't care.
Another example is Facebook that keeps adding features that reduce people's privacy, you see a lot of complains on the web, yet they don't change anything because 99% are fine with it.
So it's definitely not because a trick can be detected, that it isn't worth using it.
So that example falls a bit short in that if it's egregious enough of a trick, regulators will take notice.