I think that the important conclusion to make of this is that publicly available code is not created or even curated by humans anymore, and it will be fed back into data sets for training.

It's not clear what the consequences are. Maybe not much, but there's not that much actual emergent intelligence in LLMs, so without culling by running the code there's seems to be a risk that the end result is a world full of even more nonsense than today.

This already happened a couple of years ago for research on word frequency in published texts. I think the consensus is that there's no point in collecting anymore since all available material is tainted by machine generated content and doesn't reflect human communication.