You might think they don’t exist. They are a myth, or only interested in attacking high-profile YouTubers.
Far from the truth. In addition to watching over the CPMs and CPAs in your ads, make sure you are also paying attention to people’s responses.
If you are advertising on a social channel, comments can give you clues about if you are targeting the right people. And yes, you should hide the funny ones if they are not helping your brand.