KJ is an AP who wants for obvious reasons to not have his identity known by casinos / OSN; given that, his reluctance to meet and greet is understandable, especially given all the hostility / doxxing.

He may be using this forum as a social outlet to communicate with other people and to engage in repartee, as that may not be readily available off-line due to his need to maintain privacy.

His frequent discussion about his BJ play seems most appropriate for a gambling forum.

I suspect he's high strung.