I only use my gmail address internally (I forward mail from my institution address to the gmail account, but never give my gmail address out).
I would like to associate my institutional email with paperpile, so that when I share a paper it is used instead of the gmail account. This would also make it easier for other users (who would only have my institutional account, which is published on my papers) to share papers with me.
I believe this functionality should be easy to add, since it is only a replacement string for the sharing functions.