&gt; Holocaust denial has been refuted again and again<p>So has been the &quot;flat Earth&quot; theory. Yet we don&#x27;t ban it.<p>I think the reason it keeps resurfacing is precisely <i>the fact it is banned</i> - unbanning it would make it much less interesting.<p>Also, although you and other commenters keep repeating how &quot;dangerous&quot; it is, noone has been able to actually articulate as to <i>why</i> it&#x27;s dangerous.