The value of a good therapist is having an empathetic third party to help you make good judgements about your life and learn how to negotiate your needs within a wider social context.
Depending on the needs people are trying to get met and how bad the people around them are, a little bit of a self directed chatbot validation session might help them feel less beat down by life and do something genuinely positive. So I’m not necessarily opposed to what people are doing with them/in some cases it doesn’t seem that bad.
But calling that therapy is both an insult to genuinely good therapists and dangerous to people with genuine mental/emotional confusion or dysregulation that want help. Anyone with a genuinely pathological mental state is virtually guaranteed to end up deeper in whatever pathology they’re currently in through self directed conversations with chatbots.