It's a good stance to avoid being sued somewhere down the line. I don't think it's really about taking an ethical position on the matter. I could be wrong thoug

It's a good stance to avoid being sued somewhere down the line. I don't think it's really about taking an ethical position on the matter. I could be wrong though, I've never met the fine folks at NetBSD. Like others have pointed out, it's nearly impossible to police, and to what degree. Boilerplate code is boilerplate code for example, and whether you were assisted in writing it, or you wrote every bytes through your fingers is irrelevant, as it's an obvious continuation. At this stage, you just have to assume that every publicly available code, regardless of the license, has been gobbled up by LLM training data, maybe multiple times over, and the cat is out of the bag. You might just want to protect your IP by being clear about keeping your hands clear of it all.