The problem is that they do work within the defintion that the growth hackers are working with. They do not measure the people it drives away and never return.

The problem is that they do work within the defintion that the growth hackers are working with. They do not measure the people it drives away and never return. Think of it as similar to the mall kiosk people -- they dont care if you are offended, you probably would never have bought their product anyways. Also similar to spammers who now send emails that are so stupid that you think no one would ever click them -- except the small number of people who are so naive that they do -- which is what they are trying to select for. Which points to age old problem of any public network: spam.