That describes so many projects that I've seen, over the years.
One of my first programming projects, was maintaining a 100KLoC+ FORTRAN IV email program, circa 1975.
No comments, no subroutines, short, inscrutable, variables, stepped on by dozens of junior programmers, and the big breadwinner for the company.
Joy.
It was probably the single biggest motivation for my uptight coding style, since. I never want to do to others, what was done to me[0].
[0] https://littlegreenviper.com/miscellany/leaving-a-legacy/
That sounds challenging, and very early for email. Would I find it in the timeline or was it internal only?
https://archive.computerhistory.org/resources/access/text/20...