I'd ask what she did to the poor commas and periods, but in this case, I don't think she did anything to them. They saw what she did to the colons and up and left on their own.

Exactly they focus more on the grammer then they do on whether or not the story is good.

Sweetheart, if they focus on the grammar, you have your answer: The story's not good.

Also, I believe no one should be held accountable for their bad grammer. Who has a say in what their grandmother does? As long as they're not huffing glue behind the 7-11 with Grammer and Gramper, they're innocent. Though the court would be more kindly disposed toward them if they used good grammar when testifying in the court case against their bad grammer.