[Registered]

Oh, I know you love this topic...

[HAL9000]

Yeah, the dot-xxx domain is strictly a marketing gimmick for pornographers. It's virtually useless for filtering purposes, and it's a lousy solution from a network engineering standpoint.

The best solution would have been to reserve a range of IP addresses which would allow routers to efficiently block access (at least until the kids figured out how to configure their web browser to use a proxy server). An IP-based solution would also withstand the inevitable court challenges, in my opinion. But it's too late now.