It took them 5 years to realize something almost everyone here knew already?
https://bitcointalksearch.org/topic/wtf-kiddy-porn-in-the-blockchain-for-life-191039
Read the link that was added to the first post in that thread:
http://garzikrants.blogspot.com/2013/04/on-bitcoin-data-spam-and-evil-data.html
That is irrelevant. This is obvious FUD by bringing back "news" which were "news" years ago in order to keep the price down, we all know that, but the point is, in the future, I predict governments may legislate to make the blockchain illegal by claiming it contains illegal files embedded, even if it's only links. These guys are insane, and you don't want to end up with human trash in jail when you did nothing wrong, I think the only option left for these running nodes is going to be to encrypt their stuff, better be safe than sorry or you may end up regretting not doing so. Never underestimate how governments may try to do the impossible to get all of you in trouble for being involved in bitcoin, even if it takes bullshit of this level.