Most categories have more than one editor, and the others do their best to take up the slack. We also have some editors who can edit in all categories.
However, it is true that editors do have lives outside of Funtrivia, and sometimes there is no one - yet another reason to cultivate patience. Personally, I try to hit an internet cafe at least once when on holiday, but I will only have time for the most urgent cases. You can spend the waiting time working on your next quiz - spellchecking, researching, wording the questions carefully...
Funtrivia editor