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  1.  
    I asked this question 19 hours ago: http://dev.mathoverflow.stackexchange.com/questions/103744/what-is-the-question
    It had been closed before, and when I tried to delete it (while it was closed), the software stated that I could only delete it after 2 days. When I looked again just a few minutes ago, it apparently had been reopened. I added a comment that it seems that the question has had three downvotes and two upvotes, but that its score was 0 (instead of -1). Then I tried to delete the question again (just playing around), and for some reason it actually was deleted. I expected that I would be able to go back to the question and undelete it, but it seems that I have no access to it anymore.
  2.  

    I had reopened it while playing around. I just undeleted it. (Here is the revision history: http://dev.mathoverflow.stackexchange.com/posts/103744/revisions)

  3.  

    The initial upvote and downvote were (nearly) simultaneous. I suspect that may have caused a glitch.

  4.  
    It seems the spammers have found meta.mathoverflow. Could a moderator please delete the post from TAMARAOlson28?
  5.  

    Always amusing when spammers can't figure out markdown such that they don't even get pagerank inflation :-)

    • CommentAuthorfedja
    • CommentTimeNov 14th 2012
     
    Those are mainly bots, which are normally rather stupid but pretty persistent. To write a good spamming program takes skills and those who have skills usually find something more interesting to do :-).