title: Three forward slashes for block commenting?
body: <p>First noticed this in Notepad++, where <code>//</code> comments and <code>///</code> comments were shown in different colours.</p>
  <p><a href="http://www.chromium.org/nativeclient/sdk/native-client-sdk-coding-guidelines/documenting-classes-using-doxygen-style-comments" rel="nofollow noreferrer">Doxygen</a> revealed more about it, but I'm not convinced about its efficacy.</p>
  <ol>
  <li>Why would anyone use the three slashing commenting style when it's far easier to type <code>/*</code> and <code>*/</code>? (<em>I figure there has to be a better explanation than it being useful when nesting comments</em>)</li>
  <li>For it to be usable, do editors support block commenting for triple slashes in the way that Visual Studio has support for <code>Ctrl+k Ctrl+c</code> for multi-line comments?</li>
  </ol>