the example is good and those ads are less awful because the same ad it sent to a demographic, rather than an individual, eg everyone in Michigan get the same a

the example is good and those ads are less awful because the same ad it sent to a demographic, rather than an individual, eg everyone in Michigan get the same ad or everyone watching Friends at 8pm in Cincinnati gets the same ad. Facebook's specialty is targeting a user with an ad. And a side effect or bonus is that few others see it to talk about how inaccurate it might be.