I recently cut way way way down on facebook, for most of the same reasons. Im not as worried about govt surveillance as I am with corporations, special interests, and foreign governments. The tipping point for me though came after the school shooting down in Florida and all the anti gun advocates and people who really dont know what they are talking about jumped on the information war. Its sad but Facebook has really become and information machine to spread propaganda and essentially tell people what they should think and that they are wrong for thinking the way they do about things. The best part of all with it, its free for those with an agenda to use and the people who buy into the story will do the labor of getting the word out for free. They will even go as far as to comment and troll people to further push the subject. So about two weeks ago I decided to lay off of telling people they are being brainwashed and coerced and co opted into thinking a certain way. Now all I really care about on facebook is my real friends and posts about animals, vegetarian food, science, technology, and art.