Also requires 500GB of disk space per year, and eventually someone will put kiddy porn within the block chain.
Great coin!
And people buy Cocaine, Heroin and Hitmen with Bitcoin, not like Bitcoin is wearing a Halo...
He does make a good point, if people started uploading illegal content on the blockchain every node would have to download it. This could raise serious legal issues.
Some answers for this question.
>>> There has been "illegal content" posted in both the bitcoin and namecoin blockchains. The data in the Datacoin blockchain is encrypted so technically you would not be storing the illegal content directly. For example I could create a binary that when fed Windows system files creates an illegal file as it's output. That doesn't make the Windows system file itself illegal as it needs to be "transformed" by an algorithm. The same is true with the Datacoin blockchain if that makes sense... Regardlless, if this became an issue, a filter could be created that allows users to block sections of the blockchain in their client but this obviously is very undesirable.
>>> As for way of storing in the blockchain, I can say the next.
Go here:
http://www.chainbrowser.com/datacoin/files/ Pick any file (maybe short one)
Go to 'View file', copy its contents
Try to search for that string in blockchain directly (open in hex editor or anything like it)
As for me, I didn't find any file in plain form