Thoughts? Advice? Email it to (since Jackie is out sick)

My son hates when his grandmother (my mother) comments on his Facebook page and has gotten increasingly more vocal about it to me. It's not just comments on his posts. She is replying to some of his friends as well.

But I'm not sure how to handle it. Do I tell my son that he's disrespecting his grandmother by asking her not to comment, or do I let my mom know that it bothers him and to stop?I don't think Facebook is really where I want World War 3 to start in my family, so any help you can provide would be great!