[asadjb]

100% this.

What I thought would be a quick few hours a week thing turned into taking up all of my free time over the weekends. And writing the first draft isn't even the most difficult part. In the review stage, you'll be revisiting stuff you wrote more than 5 months ago and we amazed at what a poor job you did then. Of course, time constraints make it impossible to re-write the whole thing, which is something we programmers like doing so much! So you do the best you can and move on.

And the tooling is non-existent. Word documents and emails are what I had to deal with. There were multiple instances in which I was editing the wrong version of the chapter, or the editor was looking at an older version, etc. I hope better tools exist for this process.