I have long believed that if you are the editor of a blog, you incur obligations by right of publishing other people's statements. You may not like this, but it's what I believe. In some economies, the law even said it. You can incur legal obligations.

I now begin to believe if you put a ChatGPT online, and observe people are using it like this, you have incurred obligations. And, in due course the law will clarify what they are. If (for instance) your GPT can construct a statistically valid position the respondent is engaged in CSAM or acts of violence, where are the limits to liability for the hoster, the software owner, the software authors, the people who constructed the model...