To give a different perspective: archival is important. If nobody does this job, generational knowledge is lost at some point.
I talked plenty with my grandpa, but I'm sure he didn't even tell me 20% of his life.
And my other grandpa died when I was still a kid, so I didn't even get to have adult conversations with him.
Imagine making this available to your grandgrandgrandson.
Yeah, but you're kaoD. You're a bonafide person. You should talk with other people; it's good. (We're chatting right now.)
That's quite different from chatting with a bot that pretends to be human. (Do you want to chat with my bot?)