It seems like he is concerned about blockchains threatening the stability of global financial markets. In his very long paragraph, he repeatedly says that he believes blockchain is glorified for marketing purpose and not because of its actual usefulness and value.

I know some people will believe him as his name has been synonymous with cybersecurity but some of what he claims are untrue. I don’t want to fight with people like these. They have made their research and still refuse to accept how valuable blockchain technology can be not only to financial aspects but also to other sectors of the world. Just let blockchain be adopted worldwide and watch people like John Reed Stark eat their own words.