Update on the 5ch situation
For reasons unknown to me, the current thread on 5ch is moving from Sugiura Ayano to somewhere else. They have 3 locations.
1. The Live Anarchy board
https://agree.5ch.net/liveanarchy/This one has mostly been abandoned, but the thread is still alive.
2. Hiding in the Sakura Miko split thread on the original YouTube board
https://egg.5ch.net/streaming/This seems like the most active one we can access without a VPN right now. Doubt it'll last long, but who knows. Populated by what can only be described as "No-ID thread fundamentalists"
3. Escaping to what I think is a dead porn board
https://mercury.bbspink.com/livemegamiYou'll need a Japanese VPN to access this and I'm too lazy to activate mine and confirm, but this seems like where most of the threads are pointing to right now. Seems to be populated by posters trying to keep the spirit of the "No ID" threads but are willing to compromise on having post IDs.
Of course, there is still the original thread on Sugiura Ayano to keep people informed on where everyone is fleeing to in this online refugee crisis. There is also the original "Poster ID Enabled" threads on the somewhate new Streaming board
https://rio2016.5ch.net/jasmine/