Thanks, Martin. If you mean posting on Substack that a story was originally published on Medium, I don't see any point or need. I don't do it. They are mostly different audiences. Will including that information benefit the reader? If it was their first experience reading the story and they enjoyed it, why would they care if it was published somewhere previously?

They are your stories. You are free to publish them anywhere you like as often as you like. There are no rules on Substack. You are the editor and publisher. You can do whatever you want.

I also publish on Substack first and then post it again on Medium. I don't include that information on Medium either. No one has complained yet. 🤓