Only certain mods can see it - I can't for instance - but I agree that if it doesn't need to be there then it should be removed.
You can't see the mail ids even when a report is made in a board you moderate? I got the impression it was otherwise from the post below
Only the specific board moderator(s) can see your email when you report a post.
Check the date of his post. IIRC he was still a patroller. He became mod on February 13 or 14.
Edited.