Did you read the essay? Because if you did....you obviously have a comprehension defect.
The Anchoress is recognized as one of the premier blogs on the internet.
And I didn't get anywhere in the piece where she says to 'get all your news from Oprah'.
She warns those who spend all their time and get all their opinions from internet forums that despite the number of members of that forum...that you shouldn't construe that the majority of the public holds the same opinions.
Their appeal is mainly to other children.