I accept requests from strangers because it's no harm to it unless they look creepy. Are you someone who accepts friend requests from strangers, even if you have mutual friends, or do you just add them anyway?
I don't even accept people I know that I barely keep contact with. I also do a clearing every half a year so I don't have excess of randoms on my friends list.
Nope. I have to at least have seen them in real life. But, now I'm at the point where I'm going to start deleting people who I don't care about at all.