I reached the conclusion a long time ago that some serial...

I reached the conclusion a long time ago that some serial posters, not only on this forum, are only posting as a form of attention seeking. Some forms of attention seeking are healthy and some are unhealthy. We are dealing with the unhealthy kind. Every time you reply to one of these posters, you are giving them what they crave and enabling their unhealthy attention seeking. One of the easiest ways to gain attention is to post something controversial - in this case, something negative or upsetting. You are not doing yourself or them any favours by biting. The best thing to do is make use of the ignore button. Anything else is just adding fuel to the fire as these people are not interested in reasonable debate, they are only interested in the sugar hit from the attention.