After the newest iteration of revising the top bar navigation the
unanswered (or was it
need answer) filter option, the one that lists questions that had no upvoted or accepted answers, was removed from the
need answers tab. But it has been a long-established practice on SE to put specific emphasis on questions that do not have positively scored or accepted answers, which is SE's notion of "unanswered" and is used in various contexts, especially in the "Unanswered" tab of the old navigation bar, and has always seemed like a very useful filter criterium.
I was thus surprised when it suddenly vanished from the new navigation. First I thought that it might be just refitted under the new name of
all, which previously showed more or less all questions unfiltered (and was thus intentionally redundant to the same filter option under the
new tab). But after more thorough inspection,
all does actually list questions with accepted answers, too. But on the other hand, it doesn't list all the questions that
new -> all shows either. So maybe the previous option for showing "unanswered" questions has somehow been merged with the previous option that showed "all" in some kind of way.
So first of all, what are the exact criteria by which the
no answer options in the
need answers tab actually filter their questions? And as a follow up question, why was the option that listed "unanswered" questions (in the SE sense of the word) removed from the
need answers tab? What was the motivation for dropping such an established filtering criterium and how do the new filters accommodate or improve its use?