Not being familiar with his work, is it a known satire or assumed to be an actual exchange?
I'm having a hard time verifying its authenticity. There are at least a few claims (unsurprisingly, by the other party in the exchange) that the entire thing is fake.
The linked cyberullying article is an interesting read; then again, I'd hate to use an internet where I never had to fear running across a mean person--would be quite dull.