I think their (or his) claim to be a christian is just part of the game. If You take this person by his deeds and not his words, he was offending and attacking from his first post on.
All under the cover of defending "Kevin".
Who in his own way made Matt.7:16 come alive.
Somehow his day on the forum pointed out where his problem might come from.
(not going into details, don't want to cause another "sleeper" to pop up)