#1. "That guy"
is named Mark Zuckerberg...surprised not many people know this information, given the amount of publicity Facebook (and Mark Zuckerberg himself as well) has received over the years, especially the block-buster movie (The Social Network) that came out not to long ago about the origins of the company!
#2: "...has agreed to provide the administration with all necessary to glean what ever it wants from the tank of information.."
You forgot to mention that Facebook has also come out in the defense of employees who have been asked by perspective employers to give-up their Facebook login/passwords? (details here)
While some people may like to hang-out with friends in the 'real-world', IMHO, RV'ing and Facebook allow those with a common interest to communicate when they can't always be 'face-to-face'....simply because while you're camped at one campground and made some "new friends", who is to say those new friends are going to be with you at the next campground you visit?
Sure, you can talk to 'family/friends' on the phone when you're not with each other, but it's a little hard to share pictures and/or videos you've taken while you've traveled the country-side in that beautiful new 45' coach you picked up for $300K+/-
not to long ago!
Don't want to 'friend' someone you don't know?
I can understand that...
One way to share your experiences/journey via Facebook is to simply create a "Fan Page" and have members of whatever RV related forum you frequent the most 'like' and/or 'join' THAT PAGE!
Thus, no one has access...or can see...your personal details, pictures, etc., etc.,!