What a bunch of entitled whining. How is the system to know that it's just a private conversation that won't be used in some fraudulent way? Abuse is currently rampant, yes please let's find a way to mark LLM output. The thing I'm worried about is giving the providers the power to claim provenance. Even ignoring the privacy issues, the operational hassle of having to check N providers makes these approaches at best limited. I want to see research into providing a shared public or ideally self-hostable oracle that uses some standardized method for watermark detection. Similar to asymmetric crypto where users can't reasonably find out the secret part but can do something useful with it nonetheless.