I think this is a very good idea. One model is https://orcid.org/ If we intruded a level of indirection, it would in many ways match the indirection which datatracker now applies to all drafts for finding authors, ad, ad+authors. I have been a customer of pobox.com since 1997, precisely because of the ephemeral nature of email addresses tied to employer or ISP. I don't wish to recommend a private service, I prefer Terry's suggestion. -George
