Message gets replied by the post above

I believe that logically, a post is replied by other posts after it (although quoting previous post is okay.).

However, this post is replied by the one above

Post 146

Tapping the “down” arrow (the reply) leads to post 139.
Thus, it means that post 139 is a reply to post 146.

Post 139

Notice that Post 139 is edited, and a quote from Post 146 is added.
My point is, is it intentional?