This article argues (quite persuasively IMO) that Quora should be allowing the Internet Archive to index the site. It explores the validity argument that Quora

This article argues (quite persuasively IMO) that Quora should be allowing the Internet Archive to index the site. It explores the validity argument that Quora makes on its robots.txt, that indexing would prevent question respondents to later turn their answers to anonymous answers. I agree with the author that there is a real risk of this massive cultural trove of information to be completely dis-established on the basis of a management decision or financial collapse. A possible response from Quora qould be to offer dumps to various archives, e.g. Library of Congress. This should allow them to maintain their commercial interests.