sounds like a good idea to me, i think it should apply around the world, IMHO you shouldn't be able to have an anonymous website.
So any jerk from any place in the world could send you junk mail, call you on Sunday, spam you with emails and one day maybe even ring your door bell.
It is not about hiding, it is about privacy and personal safety which hard working and honest people want.
It is about domains. Some domains are worth a lot so it is advisable to keep their ownership away from public information for the basic personal protection of the owner.
On the other hand, if you run the honest commercial site it should be your business decision what you want to do about your contact information to build your customerís trust. In some cases you may not need them except email address, in other, you better have 1 800 number, address, your establishment picture, etc.