@trwnh @erincandescent @julian @mikedev @silverpill I have an example of a reply to multiple things in the FEP.
"Comment but don't participate in thread" is a quote boost. It also works for forking to a new thread.
So, that's what `Announce` has to do with it.
Conversation threads are *usually* reply trees, and we should optimize for that easy base case. The advanced tree-pruning and -grafting you describe are possible with a reply tree.