It hasn’t become law because it is a brainless idea.
OK, Joe Pedophile is convicted of crime. Joe goes to police and gives email address ‘pedophile@hotmail.com‘, police say ‘thank you good citizen, now behave yourself’.
Joe goes home and signs up on Facebook with ‘pedal-file@hotmail.com‘, calls himself ‘Jerry’.
Oh, you want to talk about IP addresses?
Two words: proxy servers.
And if that’s not enough, pedophiles can always go to public internet sites and get access there.
The idiots who come up with these proposed laws are totally without a clue as to the technical feasibility of their grandiose plans.
Thats Zanu-Labour for you. Always willing to think up a headline-grabbing policy without actually thinking about it first....
More likely they're looking for a reason to brag "We're making you(r children) safer!" and folks like the original poster here will buy it hook, line and sinker.
It's for the children, don'cha know.
And who wants to be against the children?
P.T. Barnum was right.