[dang]

Related:

Tom Duff: Reading Code From Top to Bottom (1999) - https://news.ycombinator.com/item?id=2620872 - June 2011 (22 comments)

Not sure how the 1999 ended up there but it looks plausible enough so I'll copy it.

[pvg]

There are several references to the time of writing in the piece, each with a date and the last one is

Yesterday (Feb 21, 1999) I rewrote [...]