In 10 years I predict bots like this will do the work of undercover agents. A bot will join a hacker group, or place an order on a deep web site, and will try to get as much identifying bits on its users.

> Tay has been built by mining relevant public data

Which public conversational data was this? Have they already been mining IRC channels and/or Skype? Or more innocuous, like the Reddit data set?