WordPress at a glance
filter is not described

the_author_posts_link filter-hook . WP 2.9.0

Filters the link to the author page of the author of the current post.

Usage

add_filter( 'the_author_posts_link', 'filter_function_name_8014' );
function filter_function_name_8014( $link ){
	// filter...

	return $link;
}
$link(string)
HTML link.

Where the hook is called

get_the_author_posts_link()
wp-includes/author-template.php 305
return apply_filters( 'the_author_posts_link', $link );

Where the hook is used (in WP core)

Does not used.