The article from Time below suggests her giving could actually be disruptive, let's hope effective too... One quote I liked particularly "Inside Philanthropy called her methods “simultaneously exciting and troubling to behold.” If all philanthropists worked the way she did—acting alone without a foundation or an obvious way of being contacted—grantmaking might be more efficient, but it would be less transparent, and possibly less diverse in its interests and approaches. (There might also be fewer jobs in the philanthropy business.)"