License of lobste.rs content ?

<p>As you may know, there is an effort called <a href="https://www.kiwix.org/" rel="ugc">https://www.kiwix.org/</a> that aims to make available Internet resources offline. It is mainly used to distribute static HTML dumps of Wikipedia, but other websites are supported like the StackExchange network.</p> <p>To be part of kiwix, the source must be Creative Commons or something open enough to allow re-use.</p> <p>So what is the license of lobste.rs?</p>