I’m unable to edit my comment above, but I understood the problem of changing the email address (even to something like name-deleted, since it could be claimed

I’m unable to edit my comment above, but I understood the problem of changing the email address (even to something like name-deleted, since it could be claimed or already registered by someone else). In this context, my comment above is pointless. :( Thanks also to @paranoidrobot for the additional explanation.