> As impressive as these examples might seem, we have to consider the fact that no company would ever publicise their results had they observed the opposite. No CMO is going to go on Medium and write an article called We dropped our spend by X%, and saw our volume drop by X%. Even if they did write such a case study, it's unimaginable that it should become part of modern marketing folklore in the way that Airbnb and Ebay's experiments have

In other words: Survivorship bias is the driver of these anecdotes. Obviously no company is going to brag publicly about shooting themselves in the foot by reducing advertising spend, so the only possible anecdotes that can exist publicly are positive ones.

Also: Most companies aren't established, household brand names like AirBnB or Uber or eBay. Those companies have built enough of a reputation and have enough word of mouth momentum that advertising campaigns aren't going to move the needle much.

I agree with much of this article. The original claims that performance advertising is a "scam" is playing to general distrust of marketers or a dislike of advertising. Any small companies trying to ditch advertising because AirBnB did it (after they were established and had saturated the market) are making their decisions for the wrong reasons.