Hey! I think this is an awesome idea. I may have something that aligns really well with the concept too.
I am a cofounder of https://www.fwdeveryone.com
and we just got done working with Medium on a really nice embed for our content.
The idea would be to supplement your Medium posts with relevant email threads from your email archive. This could be between you and your editor, your friends and family, or even if you ever give advice to aspiring writers.
If you’re at all interested please drop us a line and we’ll be happy to give you the full pitch on the benefits of including past conversations in your blog posts. Here’s an example of our Medium embed in the mean time: https://medium.com/@fwdeveryone/has-recommended