This is all well and good but I think it would be naive to think that actors that are not going to listen and/or follow social contracts of Fediverse are going

This is all well and good but I think it would be naive to think that actors that are not going to listen and/or follow social contracts of Fediverse are going to be stopped from indexing everything and selling the data to whoever. I bet there are already many, many private archives, created in silence, without front-facing UI.