Gregory's Server
>How would that phone number confirmation federate, anyway?
There is no need for it to do so. This is about stopping spammers gaining access to the service, a single server can choose to implement an additional step for registration to help slow down unwanted spam registrations.
Nothing needs to be federated, nothing needs to be kept on file. This is only about registration.
Jaz, okay. I assumed it was about spamming other people with unwanted content. Then... whatever, I guess? It's a choice each server admin makes independently. I've already seen Mastodon servers with captchas.