That tour diary reads so poorly for him that it almost seems like something another party would create to perform character assassination. If it’s really his writing, the guy was a sick piece of work and the classic asshole who thinks he’s the decent guy, surrounded by assholes. It’s hard to believe anyone self aware would write that for people to see, even pre-internet boom.
I always thought he was a little pretentiously, self righteous in his interviews about working with bands and how he talked about music. Especially his stance on not taking points on records but I never would have thought what was in that diary was in his character. My first instinct is it might be bogus? But, we never really know people.