I said what she did "is nice" and that "She deserves credit for the donation". But yes, I did minimize it -- because based on her estimated $60b net worth giving away $4.2b is less than you giving away 15% of your earnings. It is helpful, it is good, but for her it is not a sacrifice. It didn't reduce any of her options, as I'm sure your 15% donation did. I'm glad she is being charitable, but don't give her more credit than she deserves.
“Extinction is the rule. Survival is the exception.” -- Carl Sagan