Where does most of the revenue for the TV networks come from? You guessed it, commercials. In my opinion, if the quality of a commercial is high then I see no problem in brainwashing.

If you haven't seen this, there is a service that looks at reviews to find if they are fake or not: http://fakespot.com/ From what I can gather about them, they also use clustering algorithms to detect the fake Amazon reviews.

All of these are dominating the Android market due to trends of ownership.