Seeing as how Anthropic cannot stop raising a stink about "illicit Chinese distillation attacks" every month or so, I'd bet money on them either already silently degrading model performance if any of the identification patterns match, or, at the very least, considering it/doing dry runs.
Particularly considering that they've openly stated that the technology to do so exists and that they were going to use it in production on Fable.
And that's also why, as a legitimate customer, want none of it, you never know if you accidentally entered a zone they don't like.
to clarify, this behavior was announced with the model release
This is not hundreds of pages and it gets its own bold headline section.