public function check_post( $post_data ) {

		// Define local variables
		$user_data = array();
		$post_permalink = '';

		// Post is not published
		if ( bbp_get_public_status_id() !== $post_data['post_status'] ) {
			return $post_data;
		}

		// Cast the post_author to 0 if it's empty
		if ( empty( $post_data['post_author'] ) ) {
			$post_data['post_author'] = 0;
		}

		/** Author ************************************************************/

		$user_data['last_active'] = '';
		$user_data['registered']  = date( 'Y-m-d H:i:s');
		$user_data['total_posts'] = (int) bbp_get_user_post_count( $post_data['post_author'] );

		// Get user data
		$userdata       = get_userdata( $post_data['post_author'] );
		$anonymous_data = bbp_filter_anonymous_post_data();

		// Author is anonymous
		if ( ! empty( $anonymous_data ) ) {
			$user_data['name']    = $anonymous_data['bbp_anonymous_name'];
			$user_data['email']   = $anonymous_data['bbp_anonymous_email'];
			$user_data['website'] = $anonymous_data['bbp_anonymous_website'];

		// Author is logged in
		} elseif ( ! empty( $userdata ) ) {
			$user_data['name']       = $userdata->display_name;
			$user_data['email']      = $userdata->user_email;
			$user_data['website']    = $userdata->user_url;
			$user_data['registered'] = $userdata->user_registered;

		// Missing author data, so set some empty strings
		} else {
			$user_data['name']    = '';
			$user_data['email']   = '';
			$user_data['website'] = '';
		}

		/** Post **************************************************************/

		if ( ! empty( $post_data['post_parent'] ) ) {

			// Use post parent for permalink
			$post_permalink = get_permalink( $post_data['post_parent'] );

			// Use post parent to get datetime of last reply on this topic
			$reply_id = bbp_get_topic_last_reply_id( $post_data['post_parent'] );
			if ( ! empty( $reply_id ) ) {
				$user_data['last_active'] = get_post_field( 'post_date', $reply_id );
			}
		}

		// Pass title & content together into comment content
		$_post_content = trim( $post_data['post_title'] . "\n\n" . $post_data['post_content'] );

		// Check if the post data is spammy...
		$_post = $this->maybe_spam( array(
			'comment_author'                 => $user_data['name'],
			'comment_author_email'           => $user_data['email'],
			'comment_author_url'             => $user_data['website'],
			'comment_content'                => $_post_content,
			'comment_post_ID'                => $post_data['post_parent'],
			'comment_type'                   => $post_data['post_type'],
			'comment_total'                  => $user_data['total_posts'],
			'comment_last_active_gmt'        => $user_data['last_active'],
			'comment_account_registered_gmt' => $user_data['registered'],
			'permalink'                      => $post_permalink,
			'referrer'                       => wp_get_raw_referer(),
			'user_agent'                     => bbp_current_author_ua(),
			'user_ID'                        => $post_data['post_author'],
			'user_ip'                        => bbp_current_author_ip(),
			'user_role'                      => $this->get_user_roles( $post_data['post_author'] ),
		) );

		// Set the result (from maybe_spam() above)
		$post_data['bbp_akismet_result'] = ! empty( $_post['bbp_akismet_result'] )
			? $_post['bbp_akismet_result'] // raw
			: esc_html__( 'No response', 'bbpress' );

		// Set the data-as-submitted value without the result (recursion avoidance)
		unset( $_post['bbp_akismet_result'] );
		$post_data['bbp_post_as_submitted'] = $_post;

		// Cleanup to avoid touching this variable again below
		unset( $_post );

		// Allow post_data to be manipulated
		do_action_ref_array( 'bbp_akismet_check_post', $post_data );

		// Parse and log the last response
		$this->last_post = $this->parse_response( $post_data );

		// Return the last response back to the filter
		return $this->last_post;
	}