Boo! If you're an adtech user looking to avoid horrifying missteps, this post will help you steer clear of four big ones. If you're an adtech user looking to avoid such horrors, this post will help you steer clear of four big ones. Just think of me as the friendly neighbor who, upon hearing that you're thinking of purchasing a certain decrepit mansion that goes on the market every few years, refers you to a different realtor.