I don't think that's the case as they are allowing Can I Stream It? to stay up which is specifically for seeing what streaming services (including Amazon) offer particular titles.
He's referring to the special methods available to classes that allow implementation of the truth value of an object. In version 2.x of Python, this method is __nonzero__[1] and in version 3.x it's called __bool__[2]
That's an interesting question. I wonder if it's not also social habit as it would be somewhat awkward to try to talk to someone's feet or if they were sideways to you.
You don't want your product to be the one with hundreds of people having their accounts compromised. This warrants a bare minimum of password requirements.
The article says that certain other techniques weren't demonstrated because they were "too sensitive to show to the Defcon audience before giving Kaba a chance to fix the problems." What is worse than a whack on the top opening it?