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?