A contributors page (aka “authors page”) is a custom page added to you site by the Molongui Authorship Pro plugin which displays a list of all authors who have contributed with content to your site.
It makes use of the
[molongui_authors_list] shortcode, so you can easy customize whether to display either registered authors, guest authors or both. You can also exclude some authors to be listed or display only those who have posts. There are three available layout for you to choose from. So you can display a flat list, a list with author pictures or a list of author boxes.
Check out here all the settings you have available to customize the authors list.
Do not confuse a Contributors Page with Author Archives (aka “Author Pages“). While the first one lists all authors who have contributed with their content to your site, the latest one lists all posts written by an author.