iChat Nicknames

Do you sometimes forget who the people are in your iChat Buddy List? Like, if their IM name is a nickname of some kind that gives no clue as to who they are?

Someone just popped up in mine and I have no idea who it is. I'm thinking of sending them a random message like, "Hey... how's it going?"

Oh, and on a related note, I really wish my friend Tracy would unblock me from her iChat.

UPDATE: I figured out who it is.

UPDATE 2: Tracy still hasn't unblocked me.