To me it seems that the mentality of flamers is akin to those who dream up computer viruses.

Admittedly the virus originators have more power to wreak havok, and they do not necessarily see the results of their efforts, but they intend to hinder, not help, which is where they find their pleasure.

We meet people like this every day, and a large percentage of them are behind the wheel of a car at the time. It can be difficult to ignore them!!

Live and let live. Allowing them to get to you means they win!