Both of you are missing a lot of use cases. Outside of HN, not everyone uses an LLM for programming. A lot of these people use it as a diary/journal that talks back or as a Walmart therapist.
Due to economics, being able to see a human therapist in person for more than 15 minutes at a time has now become a luxury.
Imo this is dangerous, given the memory features that both Claude and ChatGPT have. Of course, most medical data is already online but at least there are medical privacy laws for some countries.