I kind of agree, but also not! For example, the GNU project always had thoroughly documented software. Emacs is a great example. And GNU does have an aim of get

I kind of agree, but also not! For example, the GNU project always had thoroughly documented software. Emacs is a great example. And GNU does have an aim of getting users! So I don't think "marketing" (evangelizing, teaching, spreading) is just a thing that big corps brought in. Mostly everyone benefits from a project being well documented and accessible. Building a community around a piece of software is intrinsically valuable! But yeah, it's not like you have to write narrative tutorials for newbies on every thing you do. I really like when there's documentation aimed at "hackers."