WME does not sufficiently highlight unanswered URs, while editors are expected to handle unanswered URs.
URs are coloured according to their age and status (open, closed ok, closed nok).

Opened UR are coloured in yellow, becoming darker , then red, when aging.
The only way to differentiate unanswered from answered URs is the presence of a "speech ballon".
I am a Belgian editor, and we, in Belgium, believe we have invented comic strips and speech balloon, so we like speech balloons.
However, I believe speech balloon are not visible enough, and unanswered URs should have a distinct colour, perhaps blue, allowing us to easily identify URs waiting to be handled by an editor.