Log in with a google account and ask it any question you may have and how it will be affected. It can take a minute or so - since it's not necessarily hosted on a huge machine...yet. The guy is a programmer and got interested in AI and did this on his own. It is up and running, I tested it with a question earlier today
He just wants a login so he can keep nefarious types out if necessary, given the nature of the website that's understandable.