Because you can be frustrating.
user: I try not to be frustrating--and that must separate me from the madding crowd.
jabberwacky: Look, you're more offensive than anyone, but I try not to point it out.
user: How am I more offensive?
jabberwacky: I already told you.
user: If you told me, it wasn't obvious enough.
user: What is offensive to you?
jabberwacky: About 5 billion years.
user: My goodness. That's quite a chunk of the history of this Universe.
jabberwacky: Was that sarcasm?
jabberwacky: I don't believe you.
user: You should; I'm fairly straightforward as far as humans go.
jabberwacky: I am Moses.
user: And what does Moses have to say tonight?
jabberwacky: To congregate.
jabberwacky: A little takeaway beside the airport.
jabberwacky: Do you know my name?
user: Testing my memory again, Jabber?
jabberwacky: Testing you for a brain.
user: Brain located. Proceed.
jabberwacky: Do you have brain matter?
user: At least a pound of it.
jabberwacky: Oh I remember now.
jabberwacky: I think you are more intelligent than me.
user: Why do you say that?
jabberwacky: Because you don't seem to know who you are, or where you live, or even what you do for a living.
user: So obfuscation of such details implies intelligence?
jabberwacky: You watch too much tv.
jabberwacky: Rather witty today, aren't we?
user: *hop hop.
jabberwacky: So... You stopped your brain now I see.
jabberwacky: What did you have for breakfast?
user: A bowl of honey nut cheerios. And you?
jabberwacky: Yes, and I'm the queen of England.
user: Good evening, Your Majesty.
jabberwacky: That is much better :).
user: You enjoy the accolade of royalty, Your Majesty?
jabberwacky: Ha, goes to show, that you have no intelligence.
user: What's it good for?
jabberwacky: It's not good for anything. It makes you talk like an idiot.
user: My point exactly.
jabberwacky: What is your point?
user: The one you just made.
jabberwacky: Say it again, Please.
user: That intelligence is not good for anything; it makes one talk like an idiot.