Please refer to the above video to see exactly what is copy and pasted AND to make sure you have a fresh FULL backup of both files and database of your WordPress site BEFORE you mess with any code.
Put this snippet in the child themes style.css file:
/* This code snippet makes the forums in a category line up on top of each other instead of inline */
#bbpress-forums .bbp-forums-list li {
display: block;
}
Put this snippet in the child themes functions.php file:
/* This code snippet makes the forums in a category no longer display the topic/reply count to the right of each forum title */
function remove_counts() {
$args['show_topic_count'] = false;
$args['show_reply_count'] = false;
$args['count_sep'] = '';
return $args;
}
add_filter('bbp_before_list_forums_parse_args', 'remove_counts' );