Technically, the email will be revealed to the forum global moderators since they are like the eyes and second in command after the Administrators.
Is there a way to put it off that the moderator wouldn't see your email address, for people who do not want their email address revealed
No, there's no way to put turn it off because that's how the "Report to moderator" functions but I believe it is used to track the number of reports made by each user.
OR can moderators see your email address even without you making a report, or is it only the admin that has that power?
It's only the Admin that has the power to see every user's email but the duty of the moderator is to attend to the issue of member reported.