What? Every single one of those is Apple-related -- one is a low-level review of differences in 10.4, and all the rest were originally written as itch-scratching extensions for BBEdit, which is an ancient Mac-only commercial text editor, and his last day job was for the company that produced it as some sort of tech-support / help-writer.
I would say that they are BBEdit-specific, except for the review of differences on Tiger. That's only tangentially related to Apple. It's not like he wrote something for the iPhone and/or Mac.
