I've never been a "troff" person. Starting around 1990, I was into TeX and LaTeX, and stayed away from troff; my only interaction with it was man pages (mostly as a consumer). This big document is my troff "Magnum Opus". Basically it started as the need to have a man page for a utility/language on Unix-like systems. I don't want to maintain a man page and a whole other reference manual, so I let it grow. And as I let it grow, I wanted to do "reference-manual-like" things in it, like auto-numbered subsections and whatnot, plus halfway usable HTML. (I don't know of any other man page which numbers its sections on the fly like this. Or is even this large, for that matter.)
