I know! I have read every piece on the site, and they really go into some fantastic detail about old Apple stuff. No idea who this person it, and they have not posted in a few years, but would love to know more about their background. Almost certainly a developer inside Apple in the 80s and 90s.
Suspicion based on some of the other articles is just somebody who's really an in-depth Apple user. Listens to folklore.org, notes in a couple articles that they appear to be on the outside and need to buy stuff just like everybody else. Some of the articles mention "awe" at how tiny the old Mac binaries were. May have been Apple tech support.
In "The Standard File Package" [1] from Saturday, February 27, 2010:
> It has never been my job to provide technical support to casual (I mean non-professional) Mac users, but I have helped friends and family members. [araes note: Implies may have been professional technical support]
In "Name it Scrapbook" [2] from Saturday, February 20, 2010:
> I am not an iPhone developer, and I don't know everything about it, but I write cocoa programs on Macs, and I have read the iPhone developer documentation.
Seems like somebody who just reads everything about Mac history, culture, and development. Quite plausible the author may actually know "more" than the original developers, because a lot don't care about their own products as much as the user base.