Great question.
Honestly, I hadn't thought about this much since I don't get a huge volume of email sign ups to my Medium-specific story updates list.
But! I think exporting your Medium email list and adding those folks to your general email list is generally a solid idea.
The golden rule of email marketing is: get permission. You want someone's permission to add them to your list. When someone opts-in to your Medium email list, I'd say they're interested in hearing from you via email. However, clarity is important.
Solution: if you want to do this **edit the text description of your Medium story updates opt-in to make clear that you are adding people to your general list**
For example, if I were doing this (which I now may!) perhaps I'd use something like
"Join Alex's humor email list and get an email when he publishes"
That's maybe not perfect, but it would do the job.
You can edit this in your Medium publishing settings under "Promote email subscriptions"... Here:
