I can understand why people ask her questions to clarify something, but I wish they'd stop asking her questions about things that it's nicer to just imagine on your own - what various people did for jobs after Hogwarts, who did Luna end up with, et cetera. If those things were important they should have been in the books, and if they weren't, it's more fun to just come up with your own version.

But yeah, I get annoyed when some little kid asks a question and I want to yell, "She answered that in 2002! What a waste of a question!"