I think its more important when you're putting something on a platform that is publishing your work. Having control of your work is paramount - this is what the

I think its more important when you're putting something on a platform that is publishing your work. Having control of your work is paramount - this is what they're saying is one of the benefits of the platform. That they can effectively change the "license" to creators work at any time and kick them off the platform if they disagree seems like a large amount of rights to give away. They could for instance have a generalized terms of service that does NOT cover works licensing, and works licensing be its own agreement which is not subject to change except with more proper controls than an auto-agree if you use the platform any time after they unilaterally update. Who owns the audience and content at the end of the day? Legally, its still the content creators copyright, but with an unlimited irrevocable license Substack de-facto is co-owner. The audience is entirely built on their platform - the email list looks like it'll be owned entirely by Substack since its through their platform - no mention of this in the ToS. I doubt there'll be an export feature. They may legally protect their rights to "your" subscribers.