May be they should visibly put that FeedFetcher can crawl your website can incur 1TB bandwidth in couple of hours ? May be apache and other httpd should block

May be they should visibly put that FeedFetcher can crawl your website can incur 1TB bandwidth in couple of hours ? May be apache and other httpd should block these crawlers by default ? How else would anyone know about a certain Google feature that could be disaster for them ?