A reader writes:
"But Second Life is more consequential than its moral failures. It is, in fact, a large-scale experiment in libertarianism. Its residents can do and be anything they wish. There are no binding forms of community, no responsibilities that aren't freely chosen and no lasting consequences of human actions. In Second Life, there is no human nature at all, just human choices."
A world without consequences? That's not libertarianism, it's liberalism.
Indeed, libertarianism is about conferring liberty and concomitant responsibility where they most rightly should rest - on the individual. Liberalism is about granting the individual choice (at least socially) but spreading the economic risks (the consequences) over the entire group.