For a lot of the authors of technical books, credibility is the whole point. The goal is not to write a book that directly makes money. The goal is to write a

For a lot of the authors of technical books, credibility is the whole point. The goal is not to write a book that directly makes money. The goal is to write a book that gets the author hired or promoted, or to land consulting gigs, or to get VC backing. So, yes, credibility does pay the rent.