I want to give this question again a bump as the issue with the missing user in the communication stream is not resolved.
The user who asked a question is not shown. We can only get it from earlier replies to whom the reply was given. Or we need to open the discussion in an extra window to see who has asked the question.
It is not a big issue if the question has not yet any reply, since you can then know the user from the left panel in the communication stream. But with a reply the left panel shows who has given the reply, but the right panel does not tell who posted the question.
