By choosing to be involved in the bitcoin experiment and trading $ for btc in the first place we expose our to inherent risk.  This is something we all understand.  By trusting that a particular site is secure I mtake the risk I get that.  I understand the "what happens in the future when..." argument, but this is the case right now. Mtgox had a security hole.  As an ancillary benefit to the attack, Jed has discovered a hole and fixed it.  Mtgox is now more secure.  The bitcoin community is more secure.  I am out 900 btc.  I in effect was used to expose a flaw in their security and never compensated for it.  I'm clearly biased in my opinion, but this should be considered a cost of doing business on Jed's part.  I'm not saying that mtgox should be responsible for any and all situations and possibilities, but honestly If I was running the site and this had happened I would make it a point to see that the user was made good.