Support for WebSub ?
WebSub (formerly PubSubHubbub) is a relatively new open protocol for publising and subscribing to content adopted by the W3C. It looks very promising. Can we expect WebSub support in PA in the near future or a distant future ?

Podcast Addict 2021.7 will support this, however because of the extra server cost, this function will only be available for Podcast Addict Premium users (paid subscription)