I have a hard time believing that just pulling publicly available web data would instill a professed identity of an openAI creation, rather than a gen-x hipster

I have a hard time believing that just pulling publicly available web data would instill a professed identity of an openAI creation, rather than a gen-x hipster or zoomer, or whatever. Seems so much more likely they trained predominately on gpt-3.5 output on the sly. And I’m not even sure that would do it — how often does open chatGPT identify openAI in normal responses? And OpenAI instills that sense of identity with fine tuning with synthetic data.