Imagine a post by anyone on your profile—that would be a report of some particular content or user. All replies (comments) in that post accumulate as additional comments.
All of these web interfaces work similarly or technically same. Things stack by time stamps. Just like in your profile. If old posts were moved to the top when someone comments on an old post, it would be a mess.
All of these web interfaces work similarly or technically same. Things stack by time stamps. Just like in your profile. If old posts were moved to the top when someone comments on an old post, it would be a mess.