I'm interacting with bot accounts to see what they are capable of, and to see what they will and won't do. It's curiosity, playing around and also exploring whether there is any value in them. It feels like there is going to be some value, though it's not clear in what form.
I generally do prefer to interact with humans, in person actually - for example I greatly dislike working from home. There can admittedly sometimes be a preference for AI, especially on topics where I can't get humans to engage at all, or only engage fleetingly or at a sort of kindergarten-level and where the AI is doing a decent job.
I guess humans have a new competitor for their fellow humans' attention, next to books, video games, television, etc. We'll see how it goes.