I'd prefer not to think of anyone as stupid here. We're a community after all, that means stick together.
Besides, as Thomas Edison (the man who didn't invent the light bulb) said "We don't know a millionth of one percent about anything" and Mark Twain estimated it would take eight million years to master mathematics alone. That in mind it's safe to say 'to be ignorant is to be human'. It just so happens that it's not the most polite course conversations can take, therefore we avoid it.
There is no need for paranoia on this site, I mean, how often do you post incriminating items on the net. Not very often. Therefore no harm can be done. I mean obviously be open and friendly but keep certain items withdrawn, it's common sense really.
So I think everyone can just calm down now, right?