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:

enter image description here

  • @Oded I understand you retagged this, but as Shadow Wizard said, this might be considered a bug (trolls getting good content deleted) Commented Jun 14, 2016 at 9:34
  • @Pat well, the related feature request has been declined by Shog. Commented Jun 14, 2016 at 10:07
  • 3
    @Sklivvz: Wait, how does a support question get status-declined? "No support for you!"? Commented Jun 14, 2016 at 20:23
  • @ilm i blame Oded for retagging
    – Sklivvz
    Commented Jun 14, 2016 at 21:19

1 Answer 1


The question had two downvotes on it as well, and was deleted when the score was 0. The downvotes were later invalidated due to some voting irregularities, which caused the score to rise back up to 2.

I've gone ahead and undeleted it.

  • 5
    There's no way this is the only case of this happening. Apparently an addition has to be made to the script that deals with invalidating votes!
    – Raphael
    Commented Jun 13, 2016 at 17:21
  • 6
    So trolls roam SE, causing otherwise good questions to be deleted. Nice. :/ Commented Jun 13, 2016 at 17:22

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