> just that it can be done and that the copyright owner could come along and cause legal problems later. It's absolutely possible to have a fly-by contributor who purposefully asks for code that reproduces X/Y/Z without a maintainer knowing about it.

If a contributor doesn't care about submitting copyrighted code, they can do it without an LLM as well.

They could, but an LLM makes it faster and easier to launder code. And makes it harder to detect.

Plenty of github accounts now are agent-driven monstrosities just trying to inflate someone's contribution stats etc.