title: User Names and White-Spaces
body: <p>In past many years I have registered on various applications and platforms hosted online or offline.</p>
  
  <p>Why white-spaces are not allowed in User Names as spaces are very natural to names and most of the computing systems can handle them efficiently.</p>
  
  <p>(Many people can raise similar questions about other special characters which are illegal. But their case is far more understandable as they are not even natural to real world naming schemes. <a href="http://xkcd.com/327/" rel="nofollow noreferrer">And surely</a>!)</p>