Inferring someone's demographic attributes by observing their behaviors isn't very new or specific to LLMs. Basic stats can do the job well enough, and ML class

Inferring someone's demographic attributes by observing their behaviors isn't very new or specific to LLMs. Basic stats can do the job well enough, and ML classification models have been trained on this for a while. What's new here I guess is that LLMs already have such inference capability built in, even though they are very general-purpose?