Since this re-surfaced from the second chance queue, this is a good place to say they just announced the first and very important steps to an independent PLC directory: https://martianbase.net/@mackuba/116314877708269740

From the alt text:

Initial board

- Bryan Newbold - Bluesky, protocol engineer

- Richard Barnes - Co-founder Let's Encrypt, Co-author MLS, ACME, HPKE, etc

- Wendy Seltzer - Internet Lawyer & open standards advocate

- Filippo Valsorda - Cryptographer, Go cryptography maintainer, transparency log aficionado

- Thyla van der Merwe - Cryptographer, security & privacy engineer at Google

This is on top of the IETF working group news: https://datatracker.ietf.org/wg/atp/about/