>Saying it was “petty drama” in the top comment sets a tone for the convo.
Top comment is the top comment because it was voted to the top. One doesn't say anything in a top comment; one says something in a comment which may become the top comment.
'dang may have pinned the comment to the top to make clear that he had changed the submitted title to the tweet and be open that he had done so. From what I've observed, pinning comments in this case isn't uncommon.
Edit to add: as 'Nicksil kindly pointed out, 'dang made clear he didn't do this in this case.
Big time agree here. The comment was substantive and succinct. Saying it was “petty drama” in the top comment sets a tone for the convo.