Woocommerce Reviews Author Name Display Formating

woocommerce-reviews-author-display-name-formatting.php

<?php
add_filter( 'get_comment_author', function ( $author, $comment_id, $comment ) {

	if ( ! $comment || get_post_type( $comment->comment_post_ID ) !== 'product' ) {
		return $author;
	}

	if ( $comment->user_id ) {
		$user  = get_userdata( $comment->user_id );
		$first = $user->first_name;
		$last  = $user->last_name;

		if ( ! $first ) {
			return $author;
		}

		$initial = $last ? ' ' . strtoupper( $last[0] ) . '.' : '';

		return $first . $initial;
	}

	return __( 'Anonymous', 'woocommerce' );

}, 10, 3 );