In an enlightened discussion, it is never acceptable to comment on your discussion partner in anything other than glowing, admiring terms, no matter what he says, whether or not he insults you, belittles you, swears at you, curses your lineage and guru, or consigns you and all your progeny for seventy generations to the lowest tiers of the nastiest hells. It's just not allowed in civil conversation.
These internet forums are actually quite good places to train in patience, wisdom and openness.
Who knows how much time I have left? I do know however that what time I do have is not worth arguing over stupid shit.