Why you should think twice before spilling your guts to a chatbot

"“Chatbots may be able to get us to say more about ourselves than an ordinary website,” says Ryan Calo, codirector of the Tech Policy Lab at the University of Washington.

“Consider a chatbot that leverages the social principle of reciprocity,” says Mr. Calo. “If a chatbot, like an online form, just says: ‘Enter your age here,’ you might not. But if amidst a conversation with a chatbot it says, ‘I was created last year. When were you born?’ you well might. At least that's what experimental studies by Cliff Nass and others have shown.”"