This has already been suggested a believe in the form of mass email change, but I would like to suggest it under an alternative means.
I would like to retain the account ID linked to this email, but cannot change the email linked to this account ID. What I am suggesting is changing the account email, and in the event of any conflicts, defaulting to the lower account ID linked to that email.
This could be done by requesting an account email change on the primary bot of the account ID you want to keep, accepting a merge request on the primary bot of the account ID that holds the email you want to change to, and changing all emails on bots from the first account to match the email of the new account.
This could also offer a way to merge accounts in the opposite direction as you can default to the lowest account ID and mass email change from the secondary account by accepting a merge request on the primary.
Alternatively you could just allow players to choose the account ID they would like to tie to the email when a merge occurs.
