I don't have any major issue to the privately run sites keeping the name and postcode of a poster (especially if threats are made) but I do think not being able to change the published details a bit worrying, personally I don't want every nut job I may or may not argue with on the net having my real name and my postcode. The Australian government seems to be going a little heavy handed over the last 6 months with censoring the internet, removing anonymity and trying to slug ISPs with the responsibility of what their users download.
