[kulahan]

I am not surprised google has many tools to tell you how great google is doing at using google's data for you.

Anyways, I was mostly referring to sales at physical locations; I assume it's pretty viable to build a system to figure out if someone who previously bought a lot of shein is now buying a lot of temu.

[jefftk]

If Google didn't want people to see "ineffective ads actually are" why would they build and push Brand Lift Studies and Conversion Lift?

Offline purchases are harder, of course, but pretty sure you can still do this: https://support.google.com/google-ads/answer/9994849

[kulahan]

For the same reason I would show someone a “totally real and honest” screenshot of my company’s finances for some quick cash. Doubly true if there’s effectively no way to be caught.

[jefftk]

Is your claim that these studies are incapable of measuring what advertisers actually care about? That Google is reporting fraudulently positive results? Something else?

(Once I understand your claim I'll be better able to respond: I think "there's effectively no way to be caught" is not true under both of the interpretations I see)