I personally have better things to do than bash other posters. Usually, all that accomplishes is wasted time for that poster to have to defend a post, and it loses some of its impact. Meanwhile, the Watchtower Society gets stronger and closer to starting the Second Dark Ages. Let that happen, and even if I won the initial argument, everyone loses.
Besides, the purpose of this board is in learning to tolerate differing viewpoints. I myself have a viewpoint that many people do not agree with, and I would rather encourage someone to go to a Catholic or Protestant church that I do not agree with than having them stumble right back into the Witchtower Society crap.