I once had a very large period of time, where if I didn't have my private messages set to friends i'd get about a million messages per second, and then I wouldn't be able to talk to my friends. I still somewhat have this issue of people I don't even know messaging me about things that happened a long time ago, but I have more friends on my friends list then I have space to add them, and I don't want to get rid of the people who are on it. I don't see this as being the case for everybody else, but I wasn't feeling like I was better then everybody else, I simply didn't have the time to say hi to everybody, and those who are my friends come first. Even today i'm set to friends only, and if people don't like that so be it. I honestly can give a care less what people think of me over it, if they think i'm a moron then I probability wouldn't give a care about getting to know them anyhow, as they are totally ignorant towards deductive reasoning.