“alignment” might be misleading cause everybody just needs to follow the Conformance Section in the spec. of the ActivityPub protocol [did not write this headline].
See From silo-first to task-oriented federated app design - #2 by Sebastian
In the last SocialCG we had wonderful demos for Client-To-Server just needing a generic LinkedData Server and everyone can build their clients just like with Holochain (there without a server at all).
So, personally I would love to learn about Valueflows in ActivityPub.
Like with the ActivityPub Conf, I would like each meeting being “public” and open to everyone.
When you wrote the above quote I was also writing the proposal for a student project to Dr. Tristan of St. Andrews (maybe we can benefit together).
And I will work out together with Cristina DeLisle about her quote
“so when you as an admin were peering with another instance you are showing your set of values, and if that other instance believes that they are sharing those values, that instance can peer with you”
This is part of my NGI DAPSI proposal and I thought, it might be similar to what you want to do.
But get-acquainted is included 
PS
I will avoid saying “blockchain” and replace it by ledger.
But I do not think that we should change the scope of this forum to another than we defined it when we built it 
We welcome both technical and non-technical discussion. Non-technical discussion should focus on cooperation across, between, and beyond projects; governance of the commons; ethics and aesthetics; etc.