Thank you. You've articulated a common flaw in almost the entire comment-based internet. I'm an idiot and come here to learn, from a genuine curiosity standpoint - that doesn't stop experts behaving childishly though. It's simply far too easy to chide or downvote whilst 'hiding' behind account names, pseudonyms, and by the same token a flood of mob-rule can decimate curiosity in a matter of seconds. It's worse for kids. The best of the best is out there too, the well meaning, the guilty, the innocent, all at once.