This is just Labor sucking up to try and weasel their way into the religious right conservatard vote.
None of it will work, there are no restrictions on what ACMA are allowed to block, the list of sites which will be blocked won't ever be disclosed, and for all intents and purposes, it is just a fuckoff waste of money that won't actually do anything.
As far as pedos are concerned, if they are able to find underground websites, they'll obviously just use proxy tunnels because of fucking course they'll know how to do that. If the government starts to block proxy tunnels, they'll use VPN's. This is just a really fucking stupid policy and a grab for the votes of stuffy arseholes who don't even know how the internet works.
And also, Conroy is a prick.