https://www.yahoo.com/entertainment/articles/brady-bunch-star-susan-olsen-213000289.html

Even at age 7, the actress realized her character was not the sharpest tool in the shed.

Susan does not sugarcoat things which I love. She referred to her character Cindy in a much more social taboo way many years ago. She would always explain all the stupid things Cindy did.
She could not spell her sisters name, not knowing what a dinosaur fossil was, tattling on everyone, always telling secrets, volunteering her family to star in a play, being on TV and not saying a word during the quiz show, writing a letter about her sister but signing it anonymous, falling for the Shirley Temple joke, and offering up her coin collection that she didn't start yet.
What did I miss?

It gets old hearing Susan complain about it so much.