News for hackers. Stuff that matters.
Re:Substack has spawned a new class of newsletter entrepreneurs by sails on Thursday July 02, 2020 @05:39AM (#23711510)
Substack writers do have access to their signups and can easily export them.

https://support.substack.com/hc/en-us/articles/360037465992-...

Re:Substack has spawned a new class of newsletter entrepreneurs by edouard-harris on Thursday July 02, 2020 @09:21AM (#23712802)
Yes. This has been the case from the very beginning of their platform, as far as I'm aware.