There was a change. BTW we are talking about the Quick Reply box at the bottom of each page, not the Quick Reply button in posts.

Here's one, my quick Reply went to papa who is just above my reply. The thread starter wasn't papa.

Another. yoyo Quick Replied and it replied to John who at the time was the last post in the thread.

Another. The Hagen yoyo mentions is Svend, right above him.