I know John Mcafee from reading the whitepaper of ICO projects that I attended. Usually, he acts as an adviser to a specific ICO. I honestly don't know his personality and abilities real and meticulously. I only made a sign that the ICO project was his advisory team, so most of the projects were trusted and successful. Therefore, the project team members and advisory team became one of the concerns that I saw if I decided to join an ICO.