I think this is the key: advertising not only risks becoming a lot less valuable, it should be a lot less valuable. Without pinpoint targeting, more irrelevant

I think this is the key: advertising not only risks becoming a lot less valuable, it should be a lot less valuable. Without pinpoint targeting, more irrelevant ads will be shown. That reduces value. Without lots of invasive tech, you can’t avoid fraud or track conversions. This also reduces value. This isn’t an unfortunate side effect of GDPR and adblockers.