The same reason that all of these other discussion posts are relevant to Less Wrong. I'm not really sure what that reason is; I just happened to know that there is some interest in bitcoin, so I was linking it in case those interested had missed it.

On a more specific note, a complete government shutdown is one of the causal mechanisms proposed when hypothesizing the long-term worthlessness of cryptocurrencies. The link provides a jumping-off point for a Less Wrong assessment of the newly available empirical evidence about this hypothesis. (I expected those with more knowledge of and investment in bitcoin than me to begin this assessment spontaneously when made aware of this event.)