If you think 600,000 podcasts sounds like a big number, imagine what number you get when you look at individual episodes of podcasts? Millions, to be sure.
While that's an arguably large number, it's not big in the world of datasets. Take the data set of "everything on the internet" (of which podcasts are a small but significant portion) where a variety of AI and well-trained humans work behind the scenes to flag content across the good-bad spectrum.
I look to the future on this episode, looking at a world where podcast content - episodes, artwork, and copy - are evaluated in a similar light, using Google's Search Quality Evaluator Guidelines as my guide.
Spoiler: if you're a business podcaster, you've got it easy. Unless you did some silly things. But you've time to fix it.