Why can't we post a discussion from the earnings page?

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I usually never do that but recently I started writing a discussion while I was in the earnings page and didn't even realize that's what I was doing. I clicked the Start Discussion button and it was buffering but it didn't actually post the discussion. I had to copy everything I had written, close the discussion window, get away from the earnings page to a different mylot page, and then start a discussion and paste that text in there for the discussion to actually post. I still don't get why posting a discussion when you are in the earnings page doesn't actually work. That just makes no sense. Good thing I copied the text before closing the window or I'd have to start writing the discussion from scratch and I'd definitely not remember word for word what I had written before.