Comment 11 for bug 552543

If the opinion of a plain old non-developer average user matters to you, I agree with the first two cases and I'm not sure about the other two.

In the third case, if the first notification times out or is closed without being acted upon, that leaves no way of un-inhibiting the remaining notifications.

In the fourth case, there *is* a way of un-inhibiting the remaining notifications, which is clicking on the status icon. But it is completely non-intuitive that the user should do that in the first place.

I guess an official specification should be drafted.