Lawmakers need to jump on this stuff ASAP. Some say that it's no different from a person looking at existing code or art and recreating it from memory or using it as inspiration. But the law changes when technology gets involved already, anyway. There's no law against you and I having a conversation, but I may not be able to record it depending on the jurisdiction. Similarly, there's no law against you looking at artwork that I post online, but it's not out of question that a law could exist preventing you from using it as part of an ML training dataset.