Should #[automatically_derived] docs contain advice for derive macros?

[eric-seppanen]

The documentation for #[automatically_derived] currently states:

The automatically_derived attribute is automatically added to implementations created by the derive attribute for built-in traits. It has no direct effect, but it may be used by tools and diagnostic lints to detect these automatically generated implementations.

I think the suggestion that this is only for built-in traits is incomplete; it's in use by many crates, including serde, clap, bevy, yew...

Also the "may be used by tools and diagnostic lints" seems vague: is this attribute recommended for use in derive macro output, for the purpose of suppressing clippy lints? Would this strategy be not recommended? I have seen a few github issues on proc-macro crates, and it does not seem like this attribute is well understood by crate authors.