Perhaps it does not update when a post is a reply to another post
It looks like that was the problem. A reply copies the row of the comment being replied to, and it wasn't unsetting $row["CommentDate"]. I just changed it to do that, and I will check whether this reply shows the correct CommentDate after posting it.
Update: It worked. This reply does not have the same date as the comment replied to.
It looks like that was the problem. A reply copies the row of the comment being replied to, and it wasn't unsetting $row["CommentDate"]. I just changed it to do that, and I will check whether this reply shows the correct CommentDate after posting it.
Update: It worked. This reply does not have the same date as the comment replied to.