Furthermore, my parents could have cared less who these stars were dating or what where they liked to shop.

-- "Why have we become so obsessed with the lives of teen stars?" on Yahoo! Shine Parenting on July 28, 2009

I'm pretty sure the writer meant that her parents could not have cared less. If they really could have cared less, then what do we care? Unless I'm missing something, the word "what" should be removed for the final part of the sentence to make sense.