I’ve only done high school level coding, but here’s what I think should happen.
So you have a “sort by” drop down menu. You have two options, “original” and “most recent reply first”. You already have date stamps, so assigning numbers will not be hard. You set up the higharchy so if there is a reply to a reply, it takes the date stamp from the most recent reply inside the reply and replaces the original date stamp’s assigned number in the back end, and still displays the original date. You then need to reverse the order so page one will show the most recent replies instead of the oldest.
I know everything I just suggested is possible. I know how to do it, but I never put that kind of stuff on a live website, so yeahhh.
