Here's the final post made at You're Not Helping. Here we see this dishonest little anonymous coward, this person who hid in the long grass and lied and lied about himself and everyone else, actually claiming to be the victim!
Of course we still don't know whether the information given even in the final post is true. That's the thing about fakes: once they are known to be fakes, you never know whether to believe anything they say.
Obviously there are more lessons here than just the one about dangers inherent in anonymity, but that one is a pretty good start.