title: Is sa1200 All using directives must be placed inside the namespace (StyleCop) purely cosmetic?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/125319/should-usings-be-inside-or-outside-the-namespace">Should Usings be inside or outside the namespace</a>  </p>
  </blockquote>
  
  <p>sa1200 All using directives must be placed inside the namespace (StyleCop)</p>
  
  <p>Is this just for code readibility or is there any actual advantage to doing so?
  Does it help the GC somehow?</p>