RE: Voluntaryism Is Not A Sunday School Class: Why pointing out bad actors is a necessary market function.
I got into a debate this week about this very thing with some fellow live music fans regarding ticket scalpers/touters. Some companies have legions of bots that snap up a significant percentage of available tickets to popular shows mere minutes (or even seconds) after they go on sale to the public, and then immediately start to re-sell them at several times their face value. While the majority of the people involved were in the "there ought to be a law" camp, there were a few who were more liberty-minded enough who asserted that "it's their right in a free-market economy to do so."
While the second statement is certainly true, I contended that it was still a rotten practice that stiff fans of particular artists who are not as rich as others. The typical libertarian response would be some variation of "So what?" However, I believe that calling them out on their unethical behavior could lead some innovative (and profit-driven) individual(s) to create technology that hinders the robo-scalpers from being as successful at their game. But solutions like that will never arise from those who shrug their shoulders and simply say, "It's their right," and stop there.