How does one delete all content from Overcast?

In the app Swipe right to left on the podcast in the main screen and select delete. That unsubscribes you.

That unsubscribes you from an individual podcast. Trust me when I say I had hundreds of podcasts that I had to unsubscribe from.

Ah, I don’t think that there’s an easy way to delete all, other than to start a new account.