I was browsing page 788 or so of unanswered questions, sorted by votes and I saw the question "Spam. Lots and lots of spam":
But why is it considered unanswered? Note that:
- It has one answer with a score of 12 (+13/-1). Not accepted, but certainly positively scored.
- The answer is currently not deleted.
- All of the voting on the answer happened a long time ago, in 2015.
- It was never merged. (Similar bug reports involving merges were reported here and here and here.)
You can also reproduce this with the unanswered tab under questions (aka with "No accepted answer" in a filter). The post is easily found at the bottom of this page.
And in addition to that, the post can (also easily) be found when searching with the
isanswered:no operator here, at the bottom of the page. The operator should return "questions with no positively-scored answers" (so it's expected that questions with accepted 0 score answers show up—but not this specific question).