@jonny I was part of the early discussions, drifted away before they actually incorporated the non-profit. I was interviewed by Jack & Parag while they were still at Twitter: “Thanks but no, not a candidate to lead this thing." My impression is that most of the discussion was unsurprising. They worried really a lot about portable identity. I like a lot of the Bluesky theory but your point about cheaply spawning infinite sock-puppet identities is something I hadn't thought of.