Very interesting article, Anastasia! I totally agree with the importance of experimentation and iteration based on results as the key to building successful UX with chatbots.
I believe that ‘dummy chatbots’ are just chatbots whose expectations weren’t correctly set. Giving users the opportunity to enter any input at any time is risky if not backed by a powerful and accurate NPL.
The way I see it, the current use of chatbots has more to do with Conversational Interfaces where the interface itself allows you to better manage user expectations.
My CEO Jiaqi Pan wrote an article on Chatbots Magazine too about this topic, you might find it interesting:
Thanks again for a nice read!