[manigandham]

Google and Facebook being two of the most valuable companies along with hundreds of billions of dollars and petabytes per hour.

What kind of evidence are you looking for exactly?

[COGlory]

That it works better. I'm wondering because of this submission the other day:

https://news.ycombinator.com/item?id=25623858

[manigandham]

Uber was a victim of fraud, not a failure of advertising. They should've known better and used more checks to catch it quickly but they already run plenty of targeted campaigns precisely because they work well.