@mattly I disagree. Anything done aside the main product is documentation; even comments or e-mails on a mailing-list.

I agree on the fact it's not accessible, on the fact that a good and organized written documentation is important for a product or tool to pass the test of time. But most people do not know how to do that, or are not willing, so this message may dissuade them from doing anything.

Instead, you can insist on the fact that videos, forums and so on are a start.