@Cruiser
I don’t necessarily agree with you…but I think it’s mostly on a semantics basis. I don’t really think of there being an “unprepared” element to stupidity – I associate that myself more with ignorance or being naive, or just uninformed. I always think of stupidity as there being an element of obstinance or inability to it, or perhaps a shallowness.
The amount of information makes drawing conclusions a daunting task – that’s why I try not to until I think it’s pretty clearly right to do so. But I don’t think you should hold yourself to a standard where you don’t have an excuse for doing something stupid merely because you were uninformed – it’s no excuse to ignore information that you’ve directly received, or to refuse to admit or learn from the error afterwards, however. That’s totally stupid. ;-)