&#62; This is a concept people use all the time in everyday life without provoking ontological crises.<p>+1 for common sense; however:<p>&#62; This is why forums are such a time sink.<p>I doubt that you can realize the benefits of an open forum without paying what we might call the <i>free speech tax</i> - the inevitable disruptions of pedantry and/or trolling, which under the right circumstances are insightful and even revelatory.