I have come to the conclusion that there is a critical mass level on facebook. With too few people whom you have friended you will not tend to spend any time on the site because there is too little to read about and too few people who read your posts. At a certain point, and I don’t know where that is (I think it is different for everyone) you will have the right amount of “friends” and be very free with your posts. Then you reach a certain tipping point. You become “friends” with people on facebook that you really are not friends with. You have people who not only do not share your religious-political-social mores but will be just fine in telling you how you are stupid in your thoughts and opinions on such things. Nothing wrong with that per se, differing viewpoints are good and will either persuade you to change your thoughts or get you to think them through enough to be firm in believing them. but it will reach a point where you will be uncomfortable with the things people say. When this happens you have reached a certain level where you will be forced to do one of two things. You either edit who can see things that you post, or you cease to be as open and honest about what you think and believe. You may not have reached this point and it may be a lot higher for some people than for others, but keep adding people as “friends” and you will. Personally I have been just fine with ignoring several people who have sent me “friend” requests because they are not really my friends but merely people I am ever so faintly acquainted with. But that is just my opinion and I am sure someone will disagree with it and tell me about it.