I'd like an option in email filters to specify
unanswered for __ hours/days. Currently I get email about questions which are already answered by the time I look at them. So I'm never able to help on these questions. I'd like to only get email about recent questions that have been sitting around a while with no answers coming. Then I can try to help those who have been left out so far.
(A similar post here on meta does mention "unanswered questions in email filters", but it's been idle almost a year, so I'm posting this separately.)