I reckon political correctness and conformity is just gonna keep on until we end up in Huxley's "Brave New World" or more likely just this:
en.wikipedia.org/wiki/Buddhas_of_Bamiyan
en.wikipedia.org/wiki/Buddhas_of_Bamiyan
Huh? So really what they are saying: "We still consider this to be child pornography, to our definition but because it's been around for so long and is so widely available and it created so much negative press we've decided to no longer block it. And if you host it on a UK site we'll come and get you!"
IWF statement regarding Wikipedia webpage
Following representations from Wikipedia, IWF invoked its Appeals Procedure and has given careful consideration to the issues involved in this case. The procedure is now complete and has confirmed that the image in question is potentially in breach of the Protection of Children Act 1978. However, the IWF Board has today (9 December 2008) considered these findings and the contextual issues involved in this specific case and, in light of the length of time the image has existed and its wide availability, the decision has been taken to remove this webpage from our list.
Any further reported instances of this image which are hosted abroad, will not be added to the list. Any further reported instances of this image which are hosted in the UK will be assessed in line with IWF procedures.