The following question was deleted by Community♦ (Roomba):
Simulate NPDAs with DTMs using only polynomial overhead
Why? What the heck?
The help page lists a bunch of criteria under which Roomba will delete a post, but none of those cases apply here. This is a question with score of +2 (2 upvotes, no downvoted), not closed or migrated.
The reason given for automatic deletion was "RemoveAbandonedQuestions". However, according to the help page, that's only supposed to apply to questions with a score of 0 (or 1 in case of deleted owner). The owner is not deleted, and the score is 2.
So why did Roomba delete this question? This seems like a bug to me. I don't think the question should have been deleted, according to the published criteria; and I wouldn't want the question to disappear, as it seems interesting.
Here's a screenshot for those of you who don't have 10K rep on CS.SE: