Which is why my comment has said, from the beginning, "as it stands today". Those interested in Bitcoin should seriously learn from those very mistakes that you're discussing, rather than re-learning them all over again.
The difference here is that no one carries around the amount necessary to tip the balance of the economy, which is very much the case with Bitcoin sites such as Bitconica
Actually just 18.5K were stolen and it didn't affect bitcoin's valuation. We are enjoying very good stability at this moment there are very few people leverage-trading.
