I agree for the most part. The only problem I see in this post is that it mentions one specific form of ad (and one example) and then vaguely expands it to cove

I agree for the most part. The only problem I see in this post is that it mentions one specific form of ad (and one example) and then vaguely expands it to cover all forms. It should be immediately obvious that the specific example mentioned is going to have a very poor ROI. Who sells on Facebook?