I can imagine there are lots of cases where that might work. But for example, if you are covering a small town police scandal or something, you might end up wanting to talk to people who’d rather not comment online or might not even have a super strong online presence/identity.
I don’t know you, but lots of people on this site do internet stuff, if you are for example an open source contributor worth reporting on, academic, or somebody like that, you probably are exactly the sort of person that an LLM would be best at contacting, right?