Exactly. And those same users are the most likely to not be able to distinguish a targeted ad from actual content. You can say "this isn't a problem because it doesn't affect me". It's still a deceptive, slimey business practice that effectively tricks a certain percentage of people. But that's what makes a buck.

I'm not necessarily blaming any one company, profit would have inevitably led to this. I just agree with the author that this IS sad.