Only show Crowd Control's "report" link when users logged in if "Users must be registered and logged in to comment" is set.

add_flagging_link_comment_crowd-control.php

		/**
		 * add_flagging_link_comment - Add report link to comment content
		 *
		 * Add report link to comment content
		 *
		 * @since 1.0
		 *
		 * @param string $comment_text
		 * @param object $comment
		 *
		 * @returns string $comment_test
		 */
		public function add_flagging_link_comment( $comment_text, $comment = '' ) {
			if ( $this->is_admin() || $this->already_flagged( $comment->comment_ID ) || ( get_option( 'comment_registration' ) && !$this->is_user_logged_in() ) ) return $comment_text;
			$nonce = wp_create_nonce( 'pmcc_comment_' . $comment->comment_ID );
			$html = $comment_text . sprintf( '<span class="pmcc-comments-report-link" id="comment-%1$d"><a class="hide-if-no-js" href="javascript:void(0);" onclick="crowd_control_comments_flag_comment( \'%1$d\', \'%4$s\', \'%2$d\');">%3$s</a></span>', $comment->comment_ID, $comment->comment_post_ID, esc_html__( 'Report', 'crowd-control' ), $nonce );
			return $html;
		}