In a conversation with Sal Khan he says (in regards to Hyperloop) he is "kind of strung out" with all he is doing now. So I'm guessing he does not want to initiate the project yet because he is a very busy boy. He also has kids.
I believe this is a hoax and a waste of energy on part of the poster. there is no evidence to support such a claim.
If a large part of the world adopts bitcoin and the protocol proves itself, the US would be shooting itself in the foot to not participate or try and control it.
This person also posted it on a very new reddit account (less than a day old!).
Using a laptop running a live Linux CD using public WI FI while leaving your smart phone at home. Using fake log ins online.