How to Disagree
Mind if I extend your Disagreement Hierarchy?<p>DH-1.  Flamebaiting.<p>This is when you preempt that with which you would disagree by stating your case in such a way as to elicit quick disagreement (in the form of DH0 to DH6).  Usually done by noticing a subset of all data, forming a hypothesis to explain only that subset, and presenting it as a conclusion.  Often done without even realizing it.<p><pre><code>   The relational database model is dead.

   There is no future in enterprise software.

   <Language du jour> is clearly the best.

   No one else is doing <xyz>, so it must be a deadend.</code></pre>