And to clarify, yes it's painfully obvious at this point that all involved with bitcoinica are either:
1) Complete fools
or
2) Thieves
In either case, lack of caution on the part of those using this questionable service after the initial hack and indications that this could be nothing more than a bucket shop allowed those running bitcoinica to either prosper by running off with funds or lose a significant portion of user funds through negligence.
People need to be smarter. bitcoinica is to blame, the users of bitcoinica are also to blame. This whole fiasco is a lesson. I'd like to see them all strung up, including the users. Fools and fish will be fooled and fished. I don't think this point can be driven home hard enough.
In their (the user's) defense...since I always like to take the opposite side of an argument...there were really no other options for one who wanted to play Forex hot-shot with non-trivial sums.
I can, and do, call people who bought homes in the obviously inflated 'ownership society' market fools. But on the other hand the only realistic option was to defer buying a home in the decade it took for things to implode and in our society (the US) one can understand how relatively few people had the combination of fiscal flexibility and analytic capabilities to avoid becoming basically entrapped.
I retain my next-to-zero empathy for anyone who lost more in the Bitcoinica goings-on than they anticipated were possible. I personally remain willing and able to lose all of the value I have stored in Bitcoin generally, and specifically those which I have entrusted to other people (e.g., Instawallet) so my sympathy for those who differ in their mindset is minimal. Even the core developers will tell you that Bitcoin itself is an experiment and a cursory glance at the history entities who helpfully hold Bitcoin (or other denominated value) on a user's behalf should be enough to instill a high degree of wariness. If not, or if a person sunk large amounts without significant research, how can they deserve much sympathy?