The .xxx TLD seems to be a mechanism to make the TLD operator a lot of money and is not likely to improve the Internet. It's a protection racket: If your businesses or organization is concerned your public face and image you will need to own and operate the .xxx version of their domains names (and variants) and probably hide behind the privacy feature of the domain name seller. If you don't some evil person will put up a website with material you don't want to be associated with your name. There may be come minimal legal recourse, but it is costly.

How does http://news.ycombinator.xxx sound?