If you get value, give value.
Utilizing the Lightning Network built on the Bitcoin protocol, people can send value peer-to-peer unrestricted. An ecosystem of applications, services and tools have been developed to enable this. A list of those apps/tools/services can be found here. While the primary use case at this time is for podcasts and music, the mediums that are supported are rapidly expanding.
There are other people who have done a phenomenal job of explaining in greater detail, and that information can be found here:
General Summary - https://value4value.info/
V4V for Creators (how/why) - https://guides.getalby.com/user-guide/v/value-for-value-podcaster-guide/
Easiest way to get started! - https://support.fountain.fm/article/50-how-to-support-podcasts-on-fountain