[shopkins]

That's not the point either. The point is that if I asked you, a human, "Who is Tim Cook" and you replied "123-555-1212" or "[e-mail]" I would be a little dumbfounded.

If I'm asking the question - maybe a friend is nearby who doesn't know them and I'm too lazy to explain - then I want to know who they are, not what their contact info is.

[vilhelm_s]

I could imagine some scenarios when I ask a human assistant "who is Joe Bloggs" and it would be quite reasonable for them to answer "oh you've met him, he even gave you his business card".

[Rzah]

Sure, but only after telling you who Joe Bloggs is, because that's what you asked, you didn't ask 'Have I met Joe Bloggs?', an assistant (human or virtual) that doesn't actually help isn't going to keep their job for long.