I was about to jump on an airplane, and didn't really have time for a nuanced response. The OP comment is, likely, from someone who has no idea what hacker culture was like in the 1970s and early 1980s, so I can see how he doesn't find it very relevant to his life today.
And he's absolutely right that it was angsty venting (I was 19, so I'll even allow adolescent). That doesn't mean that it didn't resonate with multiple generations of hackers in the 30 years since.
Since the term hacker has become so widespread I think it's hard for people to appreciate the difference between scenes calling themselves hackers, but also to recognize other forms of computer subculture.
I also think the previous commenter makes a mistake in not recognizing the influence of teenage angst on hacker culture, like many other subcultures.
Young, mostly male, persons form groups, use nicknames, makes their own publications, rejects the (some) rules of society and try to decide who is the best is almost every subculture at the end of the last century. From punkrockers and ravers, to graffiti writers and street gangs.
I think there's value in knowing how things were and what makes a culture.
And he's absolutely right that it was angsty venting (I was 19, so I'll even allow adolescent). That doesn't mean that it didn't resonate with multiple generations of hackers in the 30 years since.