Edit: Parent has edited out the comment ranting about "the normal people using chatGPT as a modern WebMD".

This is not shutting anything down other than businesses using ChatGPT to give medical advice [0].

Users can still ask questions, get answers, but the terms have been made clearer around reuse of that response (you cannot claim that it is medical advice).

I imagine that a startup that specialises in "medical advice" infers an even greater level of trust than simply asking ChatGPT, especially to "the normal people".

0: https://lifehacker.com/tech/chatgpt-can-still-give-legal-and...

The thing is that if you are giving professional advice in US - legal, financial, medical - the other party can sue you for wrong or misleading advice. In that scenario, this leaves Openai exposed to a lawsuit, and this change seemingly eliminates that.