Hide an Elixir Module from Documentation

Recently I've noticed @moduledoc false sprinkled through some Elixir projects. What's going on? To quote the docs:

Conveniently, Elixir allows developers to hide modules and functions from the documentation, by setting @doc false to hide a particular function, or @moduledoc false to hide the whole module. If a module is hidden, you may even document the functions in the module, but the module itself won't be listed in the documentation...

Why would you see this in a project that doesn't autogenerate docs? Possibly to satisfy a linter like Credo. In a codebase with public APIs, I think this kind of explicit statement is a good practice.

Writing Elixir Docs