I just scrolled to the end of the list of Unanswered questions, which seems unexpectedly long to me.
Back when I was new to ELU, this Meta question said there were only two unanswered questions at the time. So far as I knew until just now, things hadn't changed significantly since then.
I'm not exactly sure what "unanswered" means, but it definitely doesn't mean no answer has been posted, because some of the questions on that list have answers. So I'm guessing it either means they have: (1) - no answers with upvotes; or (2) - no accepted answer.
If it's the former, perhaps some of you might like to check them out and either upvote an answer, or provide an answer you think others could upvote if you don't endorse anything currently there.
If the latter, perhaps some of those questioners have simply breezed through ELU and are never going to return and accept an answer. In which case maybe the mods could do some tidying up.