I posted a comment on an answer to my question, then shortly after wanted to improve the formatting of the comment. I clicked the Edit icon next to the comment, made my changes and then when I tried to save them I was shown a red error message saying:

Users without post commenting privilege can't edit auto-generated comments

I have read How do comments work? and not found an answer there.

Could it be that I began the editing inside the 5 minute window allowed for editing but was outside that window by the time I clicked save? If so, why is the error message not more appropriate?

The comment in question is: Why does Ctrl-Down Arrow in Excel take me to row 1048576?

  • 1
    Can you show the example of this comment? Commented Dec 21, 2016 at 0:12
  • Sorry, yes - it was this one: superuser.com/questions/1158730/… Commented Dec 21, 2016 at 0:15
  • 2
    Yes, looks like you missed the edit window. You can always comment on your own questions and on their answers so it is the wrong error message. Commented Dec 21, 2016 at 0:21

1 Answer 1


It wasn't just a wrong message, there was actually a bug that prevented low reputation users from editing their comments, regardless of the edit window time. It is fixed now.


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