Most chatbots are rudimentary right now, but imagine them in a few years. Facebook has tools for us to make chatbots and so do the other tech giants. When almost anyone can make or dl a chatbot AI, how will we know who we're chatting/texting?
Make a Facebook chatbot
https://messengerplatform.fb.com
Make a Microsoft Chatbot
https://dev.botframework.com
Combine that with the sinister way Facebook is being used. We wont know who we're talking to or why theyre talking to us.