Very interesting idea, love the simplicity.
Question about this:
“Threads are positioned in the timeline by the original post’s created_at; replies within a thread are sorted by their own created_at ascending.”
Does this mean, I, as the person replying to the post can manipulate my reply time to say, 3 minutes before person X’s reply?
If so, I can imagine a few adversarial ways of (ab)using this.
I understand this is more for friend groups, just curious if my understanding is correct.
Yes that's correct.
edit: I guess an easy fix is to append a cryptographic hash to the post ID, but yeah currently I'm assuming you trust your friends.