Most chat windows are styled as if a human was sitting at the other end. It is very annoying to learn just by the quality of answers that it is only a bot answering.

I can scan information on a lengthy FAQ page or a knowledge database much faster then I can interact with a chatbot. Just imagine the interface to the Google search would be a chatbot. That's ridicolous. A well-done search page which searches over on any kind of website is a better interface then a chatbot.