I've seen this expressed somewhat more directly on another messageboard, to wit:

"Arguments on messageboards are like the Special Olympics. No matter who wins, you're all still ********."

Having been recently been drawn into my first cycling-forums pigfight, I will admit that I don't always remeber this sage, if somewhat offensive, advice. But if you think it's bad here, you should have a look at boards where registration is not required or posts can be made by anonymous registrants! The fact that here, posts are always associated with (admittedly made-up) names keeps things fairly civilized.