I think there is a lot of sensationalism in the way this issue has been aproached. To inject data into the blockchain in this way is comparable (although not identical) to writing the same 'evil urls' in a dollar bill with a pen, and then passing it around.
It is a problem that exists in a different layer than the currency, even if it is to some degree 'passed on' through the currency. Likewise, the solution (imho) lies in a different layer: detect a cp link in the blockchain? Great, take down the link, problem solved.
Just as it is not the fault of TCP/IP, or its 'downfall', that it is able to transmit 'evil data', it is not Bitcoin's fault what vandals sometimes write on it.
It is a problem that exists in a different layer than the currency, even if it is to some degree 'passed on' through the currency. Likewise, the solution (imho) lies in a different layer: detect a cp link in the blockchain? Great, take down the link, problem solved.
Just as it is not the fault of TCP/IP, or its 'downfall', that it is able to transmit 'evil data', it is not Bitcoin's fault what vandals sometimes write on it.