Today it's transaction malleability. Tomorrow it's something else. Bitcoin is an experiment. Those seeking to turn it into a ponzi scheme are pretending as if it's a reliable currency or investment.

Their is no accountability in the Bitcoin ecosystem.

If you transfer your coins anywhere you should consider them gone. The only "safe" coin is a cold storage coin. The second it goes hot it's at risk. The second you send it somewhere it's at risk.

Whether it's Silk Road or MtGox or whatever comes next, this will happen over and over again. People will spend their time either trying to exploit someone else's system or creating the illusion of trust in a system which they plan to exploit. The next MtGox is already out there.

This happens with dollars all the time too. But we hold people accountable. We have a number of ways to reverse transactions. We have insurance.