> For that result to occur, you would need so much poisoned code that it became the dominant piece of the training data.

Hold my beer...

This is being downvoted, but it touches on a really interesting phenomena we may eventually see, a sort of "arms race" where people try to make their code useless to machine learning, but simultaneously make it useless to people with lower skills (people blindly copying/pasting code with little understanding types).

As the machine learning becomes "smarter", this bar will raise, and more people will be coincidentally excluded in an attempt to keep unwanted algorithms from sucking up code.

Assuming this sort of poison-pill thing ever becomes commonplace.