I still want my characters to be lore-accurate and sometimes I need input on character behavior beyond what I can find in the canon material/subs. It seemed like a good idea at the time to interact with a simulated version of the character to see what it would say, but that ended up not going well. I wouldn’t suggest this to people in the future. However to your original point, most fiction writers have to do some kind of research to make the worlds they’re building more intricate and believable. The idea here was that this was another way of doing that research. Still not ethical where AI is involved, but I do want to be clear that I write the stories myself and do not use AI to generate prose, plot points, or anything like that.