I don't think I've read anything about FB lobbying for stricter PII laws. Until that happens, I'll write up this little "rant" as a lip service and nothing more.
Right now, Facebook is the only good way to know that "Bob Jones" is really my friend named "Bob Jones".
This idea depends on that level social trust. I wouldn't loan out bitcoins to strangers. Just friends who want to learn about bitcoin, as they won't screw me over. Even if they don't return the loan in btc, they might buy me a drink.