It reminds me of the phenomenon, prevalent in some parts of the UK, of playing non-stop music on the breaker channel of CB radio. The most incomprhensible thing is what they get out of it,when they can't see our reactions to their infantile behaviour. At least on this forum they sometimes get the satisfaction of a response when someone cracks, and responds to their uninformed utterances. Yes I've given in and done it myself, and although sometimes I'm secretly pleased with my wounding response, I suspect that it's falling on stony ground,and I shouldn't have reacted in the first place. Another sad thing is that when you confront people with these character flaws, and ask them why they do it, the usual answer is "I don't know". So perhaps the most appropriate response is pity, coupled with the phone number of a good analyst.
Failte....Jock