He's reading and responding to the readers' comments, so I tried to leave the following rhetort in the "Comments" section of the article, but it doesn't appear to be working, so I'm pasting it here:
"But Bitcoin does not generate any cash flows."
Likewise, the dollar doesn't generate any cash flows. Why would I convert my bitcoins to dollars if dollars can't generate a cash flow? Bitcoin is cash. Would you rather your cash be of the debt-based fiat variety or one that can't be quantitatively eased, counterfeited, confiscated, redistributed, etc....
Later, I'll try to copy and paste it in the "Comments" section of the article.