I was reading It seems as though my employer wants me to come into work when I'm ill. Am I missing something?, and when I clicked on the "more comments" link the comments all disappeared, leaving 0 comments.
Then, after reading one of the high-rated answers, I was again reading the comments and clicked on "more comments" only to have the same thing happen again.
There was no explanation comment left behind, not even a "Moved to chat" or "Deleted: canned explanation". If the comments were all off-topic, or terrible, or otherwise useless perhaps that could be understandable. But I know that at least some of the comments were specifically appropriate comment uses, such as explaining a down-vote - specifically what comments are for.
Were these comments all deleted? If so, were appropriate comments simply and unfortunately swept up in a mass delete because of other lesser quality comments?
I understand completely that "comments are transient and should not be expected to be permanent entities," but neither should we expect them to simply vanish without a trace, especially at the whim of a drive-by deleter, so I am not sure if this was perhaps a bug that lost comments or a deliberate action. So the tag might get changed to
bug depending on how the discussion goes.
This question received the "possible duplicate" banner for me, suggesting it is the same as Reason for deleting comments?. I have clicked the "This is not the same question" link since the answer to that question would not sufficiently answer this question. Someone stating the guidelines for what comments are and what comments are not would by itself not answer my question at all, and what is left of the answer for that question addresses the specific issues of that other Q&A thread which, by definition, do not address the specific issues of the Q&A thread questioned here. Since reading that other answer would not have answered this question, I have marked it as "not a duplicate".