CBD avoids having to actually answer questions and defend his premise by constantly demanding that YOU do the lion's share of the work in the discussion.
You state a topic, he wants specific details.
You give him details, he wants to know who said it...
And on it will go...

He just likes to hear the sound of his fingers on the keyboard, I think.

"Most plain girls are virtuous because of the scarcity of opportunity to be otherwise."
-- Maya Angelou