I had a comment at https://mathoverflow.net/questions/411870/how-do-you-generate-math-figures-for-academic-papers asking whether the question was a duplicate.  (Carlo Beenakker is responding to it in [this comment](https://mathoverflow.net/questions/411870/how-do-you-generate-math-figures-for-academic-papers#comment1055365_411870).)  Since the comment is no longer there, and since I did not delete it, I assume that it was deleted in response to moderator flags.  I have no objection to the deletion—the comment is largely superseded by Carlo Beenakker's—but, if it was in some way inappropriate, then I would like to know so that I can avoid further inappropriate behaviour.  Is it possible to find out what happened?