Curry has been talking about this for awhile now. Also I wrote about this last October.

The biggest problem with Spotify and Anchor is the fake listenership data, that gets shoveled as truth to advertisers. This is why I’m bullish on zaps it’s the only true measure of value for advertisers. It also provides a number in “dollars for now” that equates to how much your listenership will actually spend to these “sponsors” of the pod.