malnuer

Al activar este plugin, aparecerán tres nuevos campos en el formulario de configuración de “Enlaces permanentes”. 
Con estos campos podrás editar las palabras base (slug) que se usan para “Author”, “Search” y “Page”. 
Si los dejas en blanco, se usarán los valores por defecto de WordPress.

Autor Buscar Pagina

Permite editar las palabras base para "Autor", "Buscar" y "Página" desde "Ajustes > Enlaces permanentes"

wpyb

To prevent that usernames are publically visible, the username in the author’s permalink is replaced with the author’s ID. 
In case the page is invoked with the default permalink structure, it is displayed “Page not found”.
Additionally it is possible to modify the author base. It is recommended to make use of this plugin to change it, but it also works with other plugins that have the functionality to customize the author base.

Change Author Link Structure

To prevent that usernames are publically visible, the username in the author's permalink is replaced with the author's ID.

Autor Buscar Pagina vs Change Author Link Structure