A question deleted under RemoveDeadQuestions does not show negative vote at deletion time. From the question timeline (link needs mod access on Earth Science SE):
At score 0, it should be removed after a year (
RemoveAbandonedQuestions), rather than after a month (
RemoveDeadQuestions). What's going on here?
One hypothesis: it was scored at -1 at 2019-02-23, but the user who had downvoted has since deleted their account, and the downvote got reverted after the question was deleted. How do votes by users who deleted their account show up in the timeline?