Those people are irrelevant. They do that even with their closest friends because they all seem to be intent on not getting screwed. I'd rather share and gift extremely liberally, to the best of my abilities, among my circle of friends and even far acquaintances. Are there freeloaders in economic terms? eh, sure, but a lot of that is income dependent as well. But mostly what goes around comes around and a lot is going around -- velocity of gifting is > than velocity of money which is great. But then again I'm a small-l libertarian socialist.