She can't possibly cause as much harm as the hundreds of thousands of people effectively killed by the irrational beliefs of Thabo Mbeki. She will cause harm though. Some children that should have lived will die, and much energy that might go to preventing or managing cognitive disorders will be wasted countering her stupidity.
Whatever good she's done in her life will soon be outmatched by the harm she will cause.
If you are a person of reason, don't let your money go to Oprah Winfrey.
Update 5/16/09: Salon article on the Oprah problem. Twenty years ago "Dear Abby" had a milder version of the Oprah disease -- she championed the surgical and medical advice of her elite physician friends, even when there was no supporting science.
Update 5/16/09: Salon article on the Oprah problem. Twenty years ago "Dear Abby" had a milder version of the Oprah disease -- she championed the surgical and medical advice of her elite physician friends, even when there was no supporting science.