For instance, under GDPR, you have the "right to be forgotten", which means your data (and any traces of it) must be deleted. If an ML model learns from it, per

For instance, under GDPR, you have the "right to be forgotten", which means your data (and any traces of it) must be deleted. If an ML model learns from it, perhaps (IANAL) that implies the model must be re-trained when a GDPR deletion request is processed? And it's assumed they are not doing this (because of course they're not)? Just because the data was once public doesn't mean you are allowed to embed it in a model forever.