Technically, because of how hidden services work in the tor architecture (both the service AND the user are hidden from each other) there's no "exit ip" when connecting to a hidden service, it just happens somewhere in the intermediary hops. (with the hidden service pretending that its just getting a response from somewhere up the chain)
so what the author of this article was actually doing was just leaking his own IP. lol
so what the author of this article was actually doing was just leaking his own IP. lol