[toast0]

This type of writing takes a lot of effort. In computing, the pace of change is high, so in many cases, by the time you've published the manual, the product has changed. In the old days, software would come with large manuals, and then a brief pamphlet of things that changed between when the manual was finalized and when the software was finalized, and then usually a one sheet with installation instructions.

Of course, "noone" read the manuals, in part because they were out of date, in part because hopefully the software was easy enough to use that the manual wasn't required, in part because reading the manual is boring. Since they're a lot of effort to write, and nobody reads them, they stopped getting made.

[_a_a_a_]

Well said. This type of writing is perfectly doable but it does take effort and a lot of experience.