Even better than this, large sites have found they actually made more from non-targeted ads [1]. Same for the NYT - revenue continued growing after turning off ad exchanges for European visitors [2].
There's also the question around whether the levels of fraud mean companies buying targeted ads are ever getting what they paid for [3] - Uber cut $120m of $150m ad spend without any impact on installs (which is what they were trying to drive)
There's also the question around whether the levels of fraud mean companies buying targeted ads are ever getting what they paid for [3] - Uber cut $120m of $150m ad spend without any impact on installs (which is what they were trying to drive)
[1] https://www.theregister.com/2020/07/03/stop_tracking_increas...
[2] https://digiday.com/media/gumgumtest-new-york-times-gdpr-cut...
[3] https://indica.medium.com/how-uber-discovered-that-80-of-its...