I understand where they are coming from, but not sure I totally agree in concept. Yes, many FAQ's are flawed, but that doesn't mean they can't be done well, and they can't be very easy and helpful to the user. I've gone to sites with immediate and obvious questions that the FAQ answered for me in three seconds. Perfect experience. It's up to the company to understand what people need to know, and simplify the answers.
I'd imagine Facebook makes way more than $10/person/month in ad revenue, so why offer a no-ad version? Plus, that revnue estimate is based off a very fictional user/account number (a terrifying number of spam and unused accounts).