There
is a way of finding which nodes have been answered less. Go to
Seekers of Perl Wisdom and look where it says the number of replies.
Sure, it could be more convenient. But we also get few enough questions that it isn't hard to do this manually. If you do not know the answer to a problem that you want answered, you can sometimes get an answer by just posting about it in chatter. If a few knowledgeable monks do that regularly then virtually everyone will get a reply. (Not that that seems to be a problem. In the last 100 approved questions, all have answers.)