Part of what makes the blogosphere interesting is controversy and conflict. However, sometimes people can go over the line — either to get in their dig, or simply to use ad hominem tactics. DJ over at Wizbang! has an experiment to see whether people can have constructive debate without the use of such tactics. For some, this will be tough, because many of us are masochists to some degree. But enlightened discourse demands we quell the urge to call names.