[jes5199]

The non-reversibility of bitcoin transactions is a huge liability. Our current state of software technology was designed in a world where the most valuable/dangerous thing you could possibly have on your disk or on a web site was, what, your ssh keys? Nude photos of yourself?

The value of hacking, phishing, etc is significantly increased by the presence of bitcoins.

I guess you could argue that if bitcoins are popular, software practices will evolve to be much more secure - but until then, it's wild west, and much more wild than the internet ever was before.