It was actually coined by the n-gate guy as a description of how some Hackernews descend upon a thread to advocate for Rust, typically proposing that something

It was actually coined by the n-gate guy as a description of how some Hackernews descend upon a thread to advocate for Rust, typically proposing that something be rewritten in the language because muh memory safety. The Rust community just picked it up. as self-deprecating humor.