The email wasn't sent out to everyone. It was shared in one of my Medium groups. Ev's was posted on his page. To make it easier on your search, here are the links:

My article has the email from Medium in it and a link to Ev's article: https://medium.com/feedium/how-i-achieved-a-stellar-100-curation-rate-3f6b0c43a935

This is just Ev's article: https://ev.medium.com/toward-a-more-relational-medium-e801ff4653a4