Actually, the very vast majority of the people who "live" here are both polite and helpful. Then there are the others, probably less than half a dozen, who poison the atmosphere by their trolling for irate responses, profane, obscene or scatological comments, and juvenile rudeness. I guess that the best available option is to ignore them completely, but that can be hard. Many of us, myself included, find it difficult to resist being drawn into some sort of dialogue with them, and regret it afterwards. But please stay, or come back often...and it would help us to distinguish you from others if you would use some sort of consistent name.