The project itself is cool if you have access to a LLM API endpoint with good privacy (perhaps your own GPU server). I wouldn't give a LLM run by a US corporation access to my private photographs.
Would you give it to an LLM run by Chinese, Russian, or European corporation?
What I don't want to do is give it to services with an agenda to abuse the data, particularly those profiling individuals for profit. Frankly, I'd trust a Chinese service more than I would an Adtech based one, but that's still not much.