Some publishers require that you attain permission from the journal or the author before you make the content of your review public or sign your name to your review(s). You can see any journal's policy here. If you wish to make the content public or sign your name to a review for a journal that restricts you from doing so, please contact your editor.
Until permission is granted, you cannot reveal information that is restricted by the publisher/journal policy. For example:
A journal may restrict privacy to "Show journal"
If you elect to "Show journal and article title" but the journal has restricted privacy to "Show journal", the "Show journal" permission will be used when displaying your review.
An author or journal may disallow making review content publicly available
If you elect to display your review content publicly, but an author of the publication or the journal disallows public review content, the "Hide review content" permission will be used when displaying your review.