Conversation so far:
What is Oprahfication?
The Wall Street Journal coined the term "Oprahfication", meaning.
what does this cause in society?
...
She makes people care because she cares.
what is a cause she supports?
she is opposed to rap lyrics that "marginalize women".
what did she bring to the viewers?
a new form of media communication known as "rapport talk" as distinguished from the "report talk" of Phil Donahue.
what is a hallmark of Oprahfication?
She makes people care because she cares.
That is Winfrey's genius, and will be her legacy.

Question: what topics did she cover?
Self-contained rewrite: what topics did Oprah Winfrey cover?