I test plugin on my server. I create new user with permissions as on screenshot. User not see moderation panel. User can edit and lock/unlock his thread through "Thread Tools" only.
Probably, your user is a member of the group with the permissions of a moderator or a moderator. You can analize permissions with http://yousite/admin.php?permissions/analyze
Probably, your user is a member of the group with the permissions of a moderator or a moderator. You can analize permissions with http://yousite/admin.php?permissions/analyze