Quora is a fantastic resource for and I often want to share the info I find. With that in mind I found the following copyright rules on the site:
This is an official Quora policy that reflects the agreed upon conventions of the community
You can reuse all new content on Quora by publishing it anywhere on the web, as long as you link back to the original content on Quora. There are some more details to this specified at http://www.quora.com/a
Subject to these Terms, Quora gives you a worldwide, royalty-free, non-assignable and non-exclusive license to re-post any of the Content on Quora anywhere on the rest of the web provided that the Content was added to the Service after April 22, 2010, and provided that the user who created the content has not explicitly marked the content as not for reproduction, and provided that you: (a) do not modify the Content; (b) attribute Quora with a human and machine-followable link (an A tag) linking back to the page displaying the original source of the content on quora.com; (c) upon request, either by Quora or a user, remove the user’s name from Content which the user has subsequently made anonymous; (d) upon request, either by Quora or by a user who contributed to the Content, make a reasonable effort to update a particular piece of Content to the latest version on quora.com; and (e) upon request, either by Quora or by a user who contributed to the Content, make a reasonable attempt to delete Content that has been deleted on quora.com.
I also learned that there is a feature authors can use if they want to keep their answers from being published elswhere:
Not for reproduction. The “Not for reproduction” option opts a user’s answer out of the normal reuse license that Quora grants to everyone. If you’re posting about an NFR answer there is not a restriction. However, if you’re copying the contents of an NFR answer to somewhere else on Quora or to anywhere else on the web, the author of the answer might be able to stop you under copyright law, depending on whether your use qualifies as fair use. We don’t police this; it’s the same as if you wrote a blog post that included the contents of someone else’s blog post.