I reckon non-anonymous bitcoin holders are at greater risk than the average person with money in the bank, since draining the account of the former is a relative cinch once the keys are divulged. The whole crime could be completed within a few minutes.
That much may be true, but I'd consider that an inherent risk associated with using Bitcoin without using a pseudonym. Maybe I'm naïve but I have to assume people who care about such things are already tracking IP addresses directly from the Bitcoin network swarm itself for later investigation...
