Keep in mind, although he's classed as an 'ethical' hacker, many whitehats come from blackhat backgrounds, and turned whitehat because of fear of getting caught up in draconian CFAA[0] trials. Every hacker in their youth done some stupid stuff that could haunt them later. If you didn't do stupid stuff in your youth, you never really grew or learned from it.
Keep in mind, although he's classed as an 'ethical' hacker, many whitehats come from blackhat backgrounds, and turned whitehat because of fear of getting caught up in draconian CFAA[0] trials. Every hacker in their youth done some stupid stuff that could haunt them later. If you didn't do stupid stuff in your youth, you never really grew or learned from it.
[0] https://en.wikipedia.org/wiki/Computer_Fraud_and_Abuse_Act