If you look in source, you’ll see the filter applied to get_the_author_meta
calls:
return apply_filters( 'get_the_author_' . $field, $value, $user_id );
So your filter should hook get_the_author_display_name
.
If you look in source, you’ll see the filter applied to get_the_author_meta
calls:
return apply_filters( 'get_the_author_' . $field, $value, $user_id );
So your filter should hook get_the_author_display_name
.