In The W3C Is Making A Mistake About Measuring Advertising Effectiveness, Rick Bruner writes,

Platforms increasingly optimize ad delivery toward users already likely to convert. Consumers already in-market naturally generate more searches, retailer visits, social engagement, commerce activity and measurable lower-funnel signals. Attribution systems, therefore, risk confusing underlying purchase propensity with advertising persuasion. The result is a structural bias toward channels positioned closest to observable conversion activity, including search, retail media, retargeting and click-oriented social advertising.

The structural bias problem is related to, but not the same as, the problem I covered in What Happens When The Attribution Cartel Meets Advertising’s Halo Effect? Because of the way that big companies work, even if the attribution tracking did start to go in the direction of producing a right answer, it wouldn’t be allowed to. Either way:

If attribution systems systematically overcredit lower-funnel media environments already optimized around purchase intent, advertisers risk steering billions of dollars toward channels that harvest existing demand rather than create new demand.

Those big platform companies don’t just sit back and snipe unearned ad revenue. Extra ad money diverted to search, social, and app store advertising will fund risky data practices, fraud and extremism that harm everyone, while people are deprived of the positive externalities of other kinds of ad-supported media.

But none of these fine points of advertising data science are news to the attribution cartel companies. They can read the literature as well as anyone, and could even simulate attribution cartel results using their existing first-party data (like Google could have used in-house data to see the Inferring Users’ Demographics and Sensitive Interests Using the Topics API problem.)

But for the attribution cartel, getting the wrong answer is the point. That’s because marketing data science experts aren’t the most important audience for attribution reports—state legislators are.

Big Tech lobbyists already show up with voluminous research that doesn’t really hang together to back up their claims that legitimate businesses depend on Big Tech advertising. If the attribution cartel succeeds at W3C, they will be able to level up from existing misleading claims to extra-strength misleading claims, mathematically peer-reviewed and standardized. And—considering the lobbying coverage Big Tech can afford compared to the rest of us, they will have a lot of opportunities to use them.

Privacy concerns?

Fraud risks?

Noise and land use issues with data centers?

Too bad! This attribution data says that all businesses in the state depend on Big Tech advertising to sell anything.

Anyway, considered as a pure math project, the attribution proposal is probably fine. Give it a gold star. But whatever you do, don’t let it on the real web—take it out in the desert and bury the damn thing before the lobbyists start using it.

(Title borrowed from the Trix Rabbit, “who has been seeking the fruit flavor of Trix since 1959.”)

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