Comment by flakiness

In this case the PR author (either LLM or person) is "honest" enough to leave the generated copyright header that includes the LLM's source material. It' not hard to imagine that more selfish people tweak the code to hide the origin. The same situation as the AI-generated homework essays.

I generally like AI coding using CC etc, but this forced me to remember that these generated code ultimately came from these stolen (spiritually, not necessarily legally) pieces.