The only way to achieve this is to run two separate requests and count the messages returned from two separate requests. We will use get_posts , since get_posts already passes several important default values to WP_Query to make the query faster and more performance-oriented.
We will add one huge temporary and resource saver to the request, 'fields' => 'ids' . What this does is it only retrieves the post tags, not the full post object. This can reduce the request time of queries and db by 99%, therefore, despite the fact that you will run 2 separate queries in a full database, the page performance loss will be imperceptible.
Let's put everything in code (this is included in author.php, and note: this code is not verified and it requires at least PHP 5.4 +)
$author_id = get_queried_object_id(); // Gets the author id when viewing the author page // Add our term slugs into an array. $terms = ['positive', 'negative']; // Just make sure these values are correct $count = []; foreach ( $terms as $term ) { // Build our query $args = [ 'nopaging' => true, 'post_type' => 'custom_feedback', 'author' => $author_id, 'tax_query' => [ [ 'taxonomy' => 'feedback_taxonomy', 'field' => 'slug', 'terms' => $term ], ], 'fields' => 'ids' ]; $q = get_posts( $args ); // Count the amount of posts and add in array $count[$term] = count( $q ); } // Display our text with post counts, just make sure your array keys correspond with your term slugs used $positive = ( isset( $count['positive'] ) ) ? $count['positive'] : 0; $negative =( isset( $count['negative'] ) ) ? $count['negative'] : 0; echo $positive . ' POSITIVE feedback ' . $negative . ' NEGATIVE feedback';