But there's a special circle of hell for projects that rely on it for "documentation".
I get the temptation, I really do. But once you're taking money or have more than a couple people involved and semi-organized you really need at least a small wiki/git-hub landing page with the basics.
I know documentation is a separate skillset and a lot of work in its own right but projects can also stagnate and die because there isn't any.