The following is an excerpt from the tribute on Mormon Mentality linked below. It is the best summary of why Sister Okazaki was loved by so many people:
Why is it that this woman had such an impact on so many? I think that Chieko had the ability to empathize with the difficulties that people face in this life, reflect on how the gospel applied to those situations, and then to express her understanding in speeches and books in a way that conveyed her love.
Below are tribute posts and threads that were written when she died last year:
Remembering Chieko Okazaki (Part II of many) - Kristine (By Common Consent)
A tribute to Chieko Okazaki: a sister, in wisdom and kindness - Janice Bouck (The Exponent)
Chieko Okazaki. 1926-2011 - Stephanie (Feminist Mormon Housewives)
Farewell, Chieko - a random John (Mormon Mentality)
Remembering Chieko Okazki - Angela (Segullah)