You are wrong, bitcoins can be "tracked". The whole point of the Bitcoin block chain is to track all transactions. The community has developed a few tool to track "tainted" money.
Also, you already trust an anonymous form of money: cash. Why so? Mostly because insurance exists against cash theft. As the Bitcoin ecosystem develops, eventually an insurance market will develop too. It sounds like Bitcoin is too unmature for you. So, wait. In this theft case, the exchange itself is providing this insurance to you: they guaranteed they will cover the stolen funds themselves.
Also, the beauty of Bitcoin is that you don't have to trust an exchange like the one that was the victim of the theft. You can decide to take care of your own security by storing bitcoins on your own computer. There are a few efforts in progress to develop credit-card sized hardware wallet in order to provide extremely safe bitcoin wallets to non-technical users who are unable to, or don't know how to keep a computer secure for hosting a Bitcoin wallet. Again, it sounds like you need to wait for these efforts to mature before judging Bitcoin.
Alright, fair enough. I suppose my point moreso was that the fate of your very hard earned cash was bested by a rails update that any noob developer should have seen.
Given that simple scenario, think about who is watching your money..
Also, you already trust an anonymous form of money: cash. Why so? Mostly because insurance exists against cash theft. As the Bitcoin ecosystem develops, eventually an insurance market will develop too. It sounds like Bitcoin is too unmature for you. So, wait. In this theft case, the exchange itself is providing this insurance to you: they guaranteed they will cover the stolen funds themselves.
Also, the beauty of Bitcoin is that you don't have to trust an exchange like the one that was the victim of the theft. You can decide to take care of your own security by storing bitcoins on your own computer. There are a few efforts in progress to develop credit-card sized hardware wallet in order to provide extremely safe bitcoin wallets to non-technical users who are unable to, or don't know how to keep a computer secure for hosting a Bitcoin wallet. Again, it sounds like you need to wait for these efforts to mature before judging Bitcoin.