Depends on what the standards and policies of the board were. I wouldn’t ban someone just because they posted something that angered me or that I disagrred with, no matter how profoundly.
Of course, since it has been verified now by other Freepers that this guy really exists, and is a real marine, it appears that either he wrote and posted this yesterday, or that he plagiarized it from another source. You say that you debunked this and banned it on another forum. How long ago was that? Because he might have copied it and then published it as his own yesterday.
Is there any other explanation?
The debate on NewsVine is still hot and heavy, hit his retraction thread and start reading.....