This answer includes a condescending statement:
And if you don't understand the math behind what this illustration is explaining, don't try writing anything that should be cryptographically secure, because it won't be. Just put the mouse down and step away from the keyboard.
Which I found to be quite ironic since he proceeded to embarrass himself making the most egregious mistakes (eg: randomness != cryptography, among others made in the deleted comments referenced by the title).
I understand it might have sparked a flamewar, but disseminating misinformation in cryptography is a dangerous thing. Most people don't really understand crypto and he got a bunch of upvotes anyways, so I think the comments really should be there.