From As platforms and ad tech circle, podcasting’s small, beautiful age is drawing to a close :

[Podcasting] will inevitably become more like the display ad ecosystem: commoditized, automated, audience-driven rather than contextual. The podcast ad world has been craft; it’s destined to be mechanized.”

Mind you, the folks at Digiday see this as a good thing.

Eventually, every creative utterance will be “platformed” if the gray goo of advertising has its way.