If watermarking of any kind were actually going to prevent ai-generated “fraud” (or even ai being used as part of a scam), it would have more support on HN.
This kind of metadata injection increases surveillance without providing a meaningful deterrent.
Furthermore, it almost surely limits the quality of the output. At least the finterprinting of the text tokens has to, how can you otherwise constrain token output?
For example if you have 2 equally likely tokens to choose from you can pick the one specified by a key function instead of the one specified by an rng.
This kind of metadata injection increases surveillance without providing a meaningful deterrent.