US Truth in Domain Names Act
The US Truth in Domain Names Act, in combination with the PROTECT Act, forbids knowingly using a misleading domain name with the intent to attract people into viewing a visual depiction of sexually explicit conduct on the Internet.
Hong Kong does not have similar legislation. This is because posting sexually explicit photos on the Internet is an offence under the Control of Obscene Articles Ordinance. Posting amounts to 'publication' as defined in the Ordinance.