I'm not sure what you're getting at. No one ever said that email could do what you say. I certainly didn't. But the parent said "Facebook is flexible enough to

I'm not sure what you're getting at. No one ever said that email could do what you say. I certainly didn't. But the parent said "Facebook is flexible enough to provide this" in a response to an article about mailing lists. And it's true, Facebook could easily provide this. I just have no way of checking whether they do because I'm not on Facebook. It would be a great feature and extremely easy for them to implement. It would also allow them to make money on ads, so why not?