One thing I try to do (but sometimes fail at) is to judge a poster based only on what they have done within the given thread topic. So if someone was a complete *** on a prior topic, I don't hold it against him/her on the new one, he/she gets a clean slate. Some of you might want to try that; it allows for more productive conversation.
Some of the people on this forum are not interested in a conversation. They are only interested in finding people who agree with their point of view and being divisive.