What goes in the .xxx domain? Who decides? One man's pornography is another man's art, unless you have a burning conviction that you should decide what other people get to look at. One woman's abortion advice is another woman's gross obscenity.
At first glance, it seems like a great idea, but as soon as you get into the details it's a nightmare. What .xxx and similar proposals mean is that someone, somewhere, possibly in another country and with values wildly at variance with yours, gets to censor the Internet for you. It's not a service I consider worth having.
Wait, is the proposal for all pornographic sites to be necessarily limited to .xxx? If it is, then I agree that it's a matter of concern. If it isn't, then I don't see your point.
What's the point, then, of a walled garden if it doesn't have a wall around it? cookiecaper says "There's nothing to fear from a .xxx domain" but if that's the case then, de facto, there's nothing to be gained from it either except a bit of marketing edge. If the argument is for "safety", then it has to be compulsory. And even if it doesn't start as compulsory, the "Think of the children!" brigade will soon start lobbying for it to be made so.
