Dawg, I looked at the post but cannot agree with either of the only two choices.

Does KJ lie?

Yes, per his own admission.

Is he compulsive about it?

I think not; google says "Compulsive lying describes a condition in which a person tells falsehoods out of habit, sometimes for no reason at all. It is also known as pathological lying, mythomania, and habitual lying."

KJ lies SELECTIVELY, not COMPULSIVELY based on my observation.